The first thing you need to think of is not sound or tone or volume, it's budget. If you've got several thousand dollars to spend on an amp that's one thing, if you've only several hundred that's another.
A lot of people, Gearjunky seemingly included, think that everyone has a lot of money to throw at guitar playing. Some folks don't.
Having said that, the brands he mentions such as Soldano and Rivera do sound superb, and are amoungst the very best in the business, they also come at a price.
For gigs I'd always recommend at least a 50W amp preferably in at least a 2x12 format, I've always had a lot of respect for the Peavey Classic 50, which is a lot of tube amp for not a lot of money. If you need to go louder you can always mike the amp through the PA anyway.
If you need a lot of diverse sounds on a budget, modelling amps are great, but I've heard that they lose character and definition at higher volumes, but I've never tried that out for myself.
The other thing to consider is the format you're after, do you want a head and seperate cabinet? Or a combo? Or a rack setup?
Other than that I'd suggest setting your budget and trying out everything within it.
Good luck with your search