I've been playing at FNM for a long while now, testing decks. Currently playing BUG Midrange in Standard, and am barely scarred by the upcoming rotation. Most competitive deck I've played was Mono-Blue Devotion splashing Red.
Drafting Theros and Conspiracy are loads of fun. Gray Merchant, Prognostic Sphinx, and Reaper of the Wilds are all amazing in Theros draft.