All I gotta say is...
WoW 15 bucks a month for
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-No bots and no constant gold seller spammers. They do advertise but they have to create an account for each time they advertise litteraly as the accts are banned instantly.
-Balanced builds with a large variety of skills
-Massive areas to explore. Flying in the game is one of the fastest ways to travel and some of the flight paths from one place to another can take 15+ minutes travel time.
-More customizable characters. 8 races both genders with several different configurable bits.
-Multiple instanced dungeons which require well put together and run groups to succesfuly complete. Lots of good rewards to be had on each run.
-Multiple any time raids as well as daily raids. Lots of goodies from these.
-Several monthly events as well as seasonal events all of which give neat or unique rewards like the kind you wish you got on SRO.
-Achievements. Always something to do.
-Massive battle grounds many supporting well over 32 players with fortifications tanks cannons and all sorts of fun toys with ranking and rewards.
-Arena battle system for those that like closer more intimate PVP also with ranking and special rewards.
-Actual workable job system. Whore your skills out for cash and fame. Great way to make money and some of the best items in game can only be made and are not dropped.
-Interesting and varied quest lines involving all sorts of different items and scheems. Not just the same thing over and over.
-Managable and reasonable gear upgrade and enhancement system.
-Reasonable EXP requirements to level and lots of EXP from quests. Also no way to loose EXP.
-Open PK all the time no down side on PVP servers. Total free for all.(SRO job wars lol how quaint)
-Generaly no real rude or obnoxios people like "many" though not all of the turks on SRO.
I am sure I forgot some things and I could go on. But I am sure if there were any important someone will add them.
SRO(lets be honest you have to pay a minimum of about 15 a month to really play)
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-Massive gold and playerbot infestations on every server making it near impossible to log in without premium and hard to play once yo do get in. As well as familliar gold spammers in every town that hardly ever get banned.
-No real ballance to builds. What rocked this cap will likely suck the next as there is not a lot of planning going in to things.
-Fairly tiny map to explore. You should be able to cover the whole map from const to jang in less than 10-15 min at most on a lvl 60 horse.
-Very limited character customization. Woot I can change their height.
-Closest thing to instanced dungeons I have ever heard of might be CTF but it is hardly the same and not nearly avalible as often. Also shitty rewards I hear.
-Closest thing to raids are fort wars which are only avalible once a month or so and at really odd hours. Also no real good rewards to speak of other than gold.
-Maybe what 3 events a year with really crappy rewards?
-Achievement unlocked. Botted to cap! No wait no such thing as achievements in SRO really.
-Closest thing to battle grounds would be fort wars again but all the same cons apply and it is hardly the same really.
-No arena setup in SRO. Just 2 12 year olds shit talking about how great they are and no stats to back it up.
-Unique and innovative job system that absolutely no one really uses.
-Repetitive and soul crushing quests. Ride here, kill these, gather those. And really huge amounts of each. Not to mention shit for rewards and almost no EXP.
-Gear upgrade and enhancement system is unreliable at best. You will fail more often than you succeed and even when you succeed you often still fail.
-Insane EXP requirements. And if you die in any way you loose EXP.
-Crappy PK system. You better be sure you wanna kill that person because you will be flagged for everyone to kill and they will whack you like a pinyata hoping to get your gear. Have to either work or die it off taking away from actual training or fun time or loosing exp again.
-Tons of rude and obnoxious people to interact with like swarms of Turks other turks are reluctant to accept as turks they are so rude. And general self entitled 12 year old mentality english speaking players.
I am sure I forgot some things and I could go on. But I am sure if there were any important someone will add them.
Also to add. Suggest something to joymax to add or change you can be sure they will ignore it. Suggest the same to blizzard and they might actually add or change it. Hell I would not mind some sort of trade system in WoW. Running supplies from origmar to thunder bluff etc or sailing a load from darnassus to stormwind. It would be very doable and fit well withing the game setting. IE something they might actually do.
Finally I keep hearing about how WoW is graphically inferior to SRO. I am not going to flood pics to show just 1 but anyone who honestly things SRO is better graphically than WoW is taking some pretty potent hallucinogens.

One thing I will give you is that the edges tend to be a bit harder as there is at best minimal bloom effect like SRO though if you turn on antialiasing in your hardware it will fix that I just like max FPS. The player models are proportioned a bit different but over all are more detailed and OMG no mitten hands. Also detailed shadows work flawlessly and put minimal strain on the system. I would honestly be interested in hearing points as to how SRO is graphically superior. I really don't see it though.