Paladins healing ability needs a tweak
http://youtu.be/HUK_t_uC190
In the video above I have footage of myself personally showing the healing potency of a paladin versus a summoner with lower healing potency. The point of this is that, for at least PVE Paladins should be able to keep themselves up a little bit longer simply by being able to competently heal themselves. It does not really make very much sense to allow a DPS to be able to heal better than a paladin when the paladin has a higher healing potency. Paladins are supposed to be a hybrid class. In order to achieve a hybrid class status Paladins need to be able to get themselves out of danger or lend a hand in another way, for example, by being able to heal competently. I have personally gone down many a time when the healer slipped up and went down themselves and I followed very closely after due to the sheer amount of damage that tanks take and the lack of ability to keep myself up.