I think a good number of warlocks go hybrid. When people are debuffed fully, a hybrid warlock still hit pretty hard, while a number of strength points make you survive much better.
If you are unsure, just go full intel. Until you're 50-60 or so, get a decent gear, and start to pvp more actively with people your level. If surviving is really hard, then add some strength points from there on. If not, keep adding intel. When you're 70 or so, well, you know what to do then
