Re: Your tone 5 years ago and now (amps you've had).
5 years ago was 2006. I would have been using my Carvin Legacy as my main amp since mid 2005 or so. After blowing up a 2x12 and dealing with a bum trade on a Marshall 4x12, I started using the Legacy cab as well.
The amp had a good run for a little while. Then a bunch of components in the amp fried when a tube failed and a fuse didn't blow. That was in late '07. The amp never quite performed very well after that. I don't know whether that was the amp's fault, the consequences of using an attenuator, or just me riding the amp too hard.
I saved my pennies and got what was at the time my dream amp, a Bogner Legacy, in March 2008. At some point that year I moved to using a Marshall 2x12 just to contain the sound a little bit. I didn't really need a 4x12 for the band I was in.
I used the Bogner through mid 2010, during which time I left the band I was in and started working on another project with the drummer of that group, and a darker, heavier sound developed. I also started experimenting with speakers more and went back to using a 4x12 because I missed the chunk of a 4x12 and it was necessary for the style I am playing now.
I realized that the Bogner, while indeed an amazing amp, was not the ideal pick for me. I sold it and used the money for various things, and traded a guitar for what has turned out to be my most favorite amp I've owned, a Mesa Boogie Tremoverb. It's a much better fit for my style, simpler to dial in, and I love the way it sounds.
My sound then was loud, dark and smooth. My sound now is louder with less mids and more treble, with an extended and tighter low end.
I think i sum it up best when I say I use amps and sounds geared for metal to play hard rock music.
In the future, I'd love to get my hands on an Orange Rockerverb, an OD100SE+, and a Dave Friedman Naked amp. Maybe a Fender Super Reverb or Vibroverb for cleans.