Severed
Fractal Fanatic
Main strike on the Line 6 units for me was the battery life. Shure is the best I've ever seen in my life.
I can play a 2 nighter (that is 6 solid 1 hour sets + another hour standby give or take) on single set of Duracell AA rechargeables that are still going strong after 3 years of every weekend use (that's over 156 charges, and still giving me 8:20 fully charged). I also have about 20 sets of backups as I also use the same batteries in my IEM receiver, as well as my camera, LED flashlight, wireless keyboard and mouse, tuner, microBR digital recorder and anything else, LED rack light, wireless remotes, etc.
I also have the Duracell 15 minute charger which easily gives me a full charge in between sets.
IMO the versatility of being able to use cheaply replaceable AA rechargeables far outweighs extra time... I mean I don't play for 16 hours + straight or even 8 hours straight 2 nights in a row, so, just seems like a pointless thing, because I bet you are still charging it to full prior to getting on stage every time.