so far I like my marshall distortion... stoped using pedal when jaming.
For recording I use a V-Amp X which I tweaked A LOT, and I mean A LOT because the factored sound setting are awful. With a mixer and the pedal I can come with some viable. Why I don't use the Marshall? I have a lot of neighbors
In my opinion the answer is obvious the ibanez tube screamer ts808, ive tried some of the others mentioned here plus some others like the danelectro pepperoni (guitar player pedal of the year) and if u can get an old tubescreamer u wont regret it.