Anyone tried both of these amps? Looking for a general consensus here amongst the TDPRI crew. I've heard some comments along the lines of; the new Fender Mustang amps make the older Vibro and Super Champ XD models obsolete. So what's your opinion? Fender Mustang or *Champ XD? And, given the choice... would you go for one of these modellers over something like a Vox AC4TV? All down to personal preference & opinion, of course, which is why I'm asking.