Either Shure GLXD16 or Line 6 G70 - a while back I used a G50 on a traditional board for years with great sound and never had any problems from the G50.
The Shure look really good and get great reviews, and the G70 addresses all the small things I'd have done differently had I designed the G50 ( Jack input on the transmitter, jack in on receiver for back-up, multiple body packs possible, text and color to show which guitar/ body pack is active, levels programmable for each body pack/guitar, dual out (programable), tuner, DI out)
I have to check the Shure out in more detail for features like whether multiple body packs are possible before I decide.
If I end up going with the Shure I might change the G90 in my rack to a Shure unit as well to have the same system and more body packs.