The 2 channel amps are fantastic all-around amps. I have an SE version that I wouldn't hesitate to play any gig with, and the USA ones I'm sure are even better. The drive channel will do anything from classic rock tones to grunge to searing leads. The clean channel is really full and robust, and takes pedals like a CHARM. I have a Wampler Plexi Drive on my board for plexi sounds, and a silver first gen Jekyll and Hyde that does a great rectifier tone, and with that rig I can play almost anything. Find a couple good pedals to put with a 2 Channel H or Custom, and you'll be unstoppable.
Edit: I also haven't cared for any of the Archon clips I've heard. Full disclosure, I haven't actually played one, so I'm not in a position to say for sure, but I'm also not really seeking one out. As you said, they sound a little flat, and I don't like the breakup character that I'm hearing.
Now I'm going to brace myself for the consequences if that statement...