I'm about to re-sub and being a veteran player (been a priest since vanilla beta), I was doing my research per usual on priests in top guilds. The only time I haven't been holy in the past two expansions was on LK HM, but as far as I can see (top5 US guilds), almost the majority of their priests are specd disc. I've seen other threads on this topic and I'm not trying to start a flame war over which spec is better; Just trying to find some clarity I couldn't find elsewhere.
I've been away from the game for awhile (Only raided in cata for a month or two before taking a hiatus) and was curious of why disc was so predominant and which would be most suitable for LFR and normal modes (an answer other than, "what you like best", like most guides and threads say). Thanks.