As far as people giving you settings to try, realize those will give you a starting point. Then you'll need to fiddle to find a good interaction between the amp, your guitar, and your ears.
Pushed and Raw are some of my favorite sounds. In fact, Pushed is probably my favorite rock rhythm sound. I get great tones in those modes by cranking the amp up with just a little bit of gain. I will then even back the volume down on my guitar a little. (I don't use EMGs anymore, so if you do - I am not sure how that would work with EMGs.)
I have found that with my Mesa I can always find new tones. Meaning, that with some fiddling - it is as if I found a new amp. My next Mesa will be a Road King, and I am hoping that it will provide even more tonal exploration.
With a Marshall - it was always the same amp sound just with more or less treble/mid/bass. It's one of those subjective things that is hard to describe. But the sound is just always the same.
But as far as loving your amp just because you spent a lot of $$, I would say IMO you can spend just as much (or more) money on a Marshall - and not get the versatility you get with a Mesa. I think a lot of people pay money for a Marshall because it is the rock amp they are 'suppose' to play through - because it is assumed to have THE great rock sound. I know the old ones did. But these new production Marshalls are VERY sad indeed.
Notice though, that recently Marshall has started releasing boutique quality products. I played through
this Marshall. And it sounds great! But this 20W one trick pony will set you back $1800 just for the head. WTF? I'd rather have anything Mesa. (I am sure the weakening of the USD has caused a huge decrease in Marshall sales and Mesa has benefitted.)
Being able to pull out good amp tones only comes through experience. And it is hard to get that experience without playing through a lot of different amps and getting a feel for what it is you are personally looking for. I was fortunate enough to work at a guitar store years ago that dealt a lot in vintage guitars and amps. But, when I first started working there I doubt I could have passed a blind test between a Marshall, Fender, and a Crate.
For myself, Mesa is where I ended up. So, I think you have the right amp. Sure other amps still have great sounds. (I was flat blown away when I played through a Bogner.) If there were such a thing as a "Tone/$" ratio, I think Mesa would provide the widest range of tones/options/versatility for what you spend.