Well basically atleast 90% of F2P mmos out there could be given a nickname 'Yet another potiondrinker online'. When you have the whole PvE based on spamming potions to keep on going and killing stuff you kinda automatically get that in PvP also. P2Ps most of the time have longer cooldowns on potions and also have healer classes, which don't exist in all F2Ps or if they do, most of the time they're not played at all and suck.

In general F2Ps don't have good PvP. They rarely have even good PvE.