The DGT and Matchless seem to me to be a natural. Very complimentary types of tones. I also used a McCarty through a Bogner Metropolis, a stellar match. So we have a lot in common.
The only classic Marshall amps I've ever really enjoyed playing through are Plexis, and of course the HXDA is based on them. But I get great, un-muddy cleans through it with all of my guitars, and can control the gain with the guitar as well. So on that we probably differ a bit.
I generally like Mesa amps; there are a few models that haven't floated my boat, but I can usually dial in good tones, and because of the natural compression most Mesas have, they're very, very easy to record. Put a 57 in front, and bingo, no screwing around, no pedals needed, etc. The same compression makes most Mesas forgiving to play through. The Lone Star has great cleans-to-edge-of-breakup, but I'm not big on Channel Two, and use my HXDA for higher gain stuff anyway. However...the Fillmore ties with my old Tremoverb as the best sounding Mesas I've had (and that's a bunch o' amps). I liked the clean channel on my Mark V, but the two other channels weren't for me, so I got the Lone Star.
Like you, I find that one amp can't do it all. I have to give props to my Two-Rock Onyx models, however. They came closest to all-around 'do everything' amps, though they couldn't do the one thing I wanted most, which was the vintage Plexi tones. When I had them, I never used my other amps and sold them all off.