A disclaimer: This is not intended to start a holy war (pun kinda intended). This is just a question from a new level 90 priest.
Recently I decided to take my level 85 priest to 90 in an effort to get him into arenas (2's and 3's) as well as do some battlegrounds (non-rated). When I started out (prior to 5.4) it looked as though Disc was the spec of choice for my interests. Recently I've noticed the top rated Arena players are all Holy. On to my questions:
1) Is Holy now the go-to for arenas, and if so, what changed it?
2) Given what I want to do with my priest (see above), should I consider dropping disc and start gearing for holy? Or is Disc still competitive?
I enjoy the disc style of healing (Bubbles == Awesome Sauce), but I'm curious as to what Holy has that seems to out shine it recently.
(Please keep answers/discussions civil. )