Well it all depends on what you can afford. For me the LS-100 is the best, for the price of a 3W with mufflers, I've got a LS-100 in a Lanier Yak 54 87inch with all digital servos, the only thing not in the price was my 9 CAP Super TX and RX.

http://www.rcuniverse.com/market/item.cfm?itemId=253836