Hey man, you can't knock the MGs for tone/value stakes...they're not bad amps really, as far as solid-state non-modelling amps go...
Personally I'd go for the VM or the DSL - the JVM probably does too much for what you need it for (4 channels, each with footswitchable modes.....), although it does sound great. The VM is the more 'vintage' sounding of the two (it runs KT66 output valves instead of the DSL's EL34s) whereas the DSL has higher gain capabilities, but other than that there's not really a lot in it...the major difference between the two is the DSL does more (two channels, various footswitchable 'OD settings') whereas the VM is more of a plug in and play amp in comparison. Oh, and I've got a feeling the reverb in the DSL is spring, whereas the VM's is digital...
My two cents? Go for the VM, crank the master as loud as you dare, and wail....I did just that with a friend's 50w VM head and the tone was smokin'
Or look for a second-hand Bluesbreaker combo...
Peace
James
'What's the use in gettin' sober......when you're gonna get drunk again' - Louis Jordan
Guitars - Gibson VOS R8 LP, Custom built Telecaster w/Bare Knuckle and Duncan pickups, 60's/70's Kay Tulip (for slide)
Amps n ting -1966 Fender Deluxe Reverb, 1961 Gibson GA30 Invader, Fredric Effects Golden Eagle, Wampler Faux Analog Echo