Couple years late, but a lot of the current guys have been playing Zildjian Keropes of all sizes, K Light rides, and a lot are hitting Istanbuls.. now this is in the Bethel style worship with trendy big, loud, and dark cymbals. David Whitworth from Bethel has Istanbuls, and none of his cymbals except hats are under 22". Joe Volk plays closer to what I have: 20" K Constantinople Medium Thin Low, 22" Kerope, 24" K Light ride with (I think) 16" K Light Hats.
My current setup:
-15" Kerope hats
-20" Kerope on my left
-22" Kerope on my right (I pitch and weight matched them to be at a pleasing interval)
-24" K Zildjian Light Ride
If I were to do a smaller setup and not standard K's (still Zildjian), I would likely do:
-14" K Sweet hats
-18" Kerope
-20" Kerope
-22" K Zildjian Light Ride
I sold my 22" K Constantinople Hi Bell Thin High and 20" K Con Medium Thin Low just because they stood out a bit much in the room. We're playing in an 800 seat treated auditorium with a decent shield, and I feather the cymbals, but we don't want to have to mix too far above the volume of the kit.
Meinl are good, and a lot are muted and trashy, but it's all personal taste. Once you get to a certain quality level, most dark cymbals that aren't too loud are great choices. I would be careful with A Custom or other brilliant finish cymbals, but it's about technique too. I run live sound, and I always build relationships with the drummers and make thoughtful suggestions rather than muscling my way through a really painful sound.
Hope this helps,
Michael G