jgledhill: Err is there no music in the older dos versions? I guess I'm spoiled by the genesis version lol (2)
I haven't played the PC version in ages. I also was spoiled by the higher-fidelity versions of 2 (I had it on C64 and Genesis, and PC). But I thought I remembered there being music in the PC version, just nowhere near the same quality. I could be wrong, though.
You can start with 1 and go through them all. What carries over from the games that do carry over isn't really worth much (in fact, as stated somewhere [I can't remember where], you may be at a bit of a disadvantage to start with old characters]).
If you can get into the old ones, knock yourself out and enjoy. I personally love #2 the most, but it's colored with a lot of nostalgia. MM6-8 are really quite good games. Not spectacular, but very good.
I tried 4/5, but I did not like them. I'm considering giving them another try some time, b/c nearly everyone says those are the best.