Alright, so my first toon is lvl 52 bloodelf Disc Priest. I've mostly ben bs-ing my way through my own tailor gear and drops with stats I want, but I don't really know what I need.

Is there any gear you know is a must have for my lvl?
Or does it not really matter at this point?
Here are some of my stats, if it makes a difference, could you tell me what should be higher, or what should I focus on more?
Or any help really I'm pretty much still a noob at this point and would appericiate any suggestions.

2450hp
4115mn

(Spell)
6.86%crit hit
149 bonus healing/dmg (up to 249 with trinkets)
24 hit rating
113 mn regain

Also, I PvP, ALOT, but end up doing more heals then dmg.
Strengh: 31
Agility: 40
Stam: 154
Intell: 212
Sprit: 213
Armour: 3173