Technically i think life oracle can out heal a cleric.
personally i would recommend picking up eldritch heritage (arcane) to obtain a familiar so you can heal at range once it can deliver touch spells. Improved familiar to get a silvansee (the outsider cat with LAy on hands equal to a pally of your level)
According to what I saw, the Silvanshee can only use Lay on hands 1/day as a 2nd Lvl Paladin, not as a Paladin of your level. Where are you seeing otherwise?