Line 6 is is the correct answer for wireless these days. I've been running the G30 for about 2 years now. No problems with dropouts, sounds much better than any analog wireless I've used, and I've used a lot, including the top of the line Shure and Sennheiser units.
However, I will go ahead and suggest spending the extra $ on the G50 or G90, because the plastic casing of the G30 transmitter isn't incredibly durable, particularly the clip. Mine broke off about 6 months ago. Granted, that was after a year and a half of gigging 4-5 nights a week, every week, but still.