if you hate ALL modern marshalls, then surely you havent played the new handwired reissues? nothing boogie makes can even get near these things for vintage tone reproduction and accuracy...although itll cost you a tripple rec+cab to get your hands on an 18 watter.
i agree with you on the rest of those amps though. in terms of tone, they're terrible, althought the 800 seems to have garnered a reputation outside the rest of the modern marshalls. i personally own a jcm900 combo that i use stricly use as an extension poweramp and speakers for my boogie. its another 100 watts of very breatheable headroom and the vintage 30's sound great with the boogie.
one modern marshall that does not deserve your hate is the 30th anniversary. i havent been fortunate enough to own one, but i played a combo in a store a year ago and i couldnt get over the vintage tones that came out. kind of a roadking for marshall
surely if you hate the modern things coming out of marshalls shack, you cant think much of the dual and tripple recs? i personally find them a bit of a joke, but then again i've grown to hate the tone associated with master volume amps and high gain preamps... i've become an advocate of poweramp distortion after over-cranking my nomad and leaving the gain at 9:30.