I'll throw my hat in and say that although the Multi Watt and 90's DR are similar, I do think the 90's DR edges it out just for the extra preamp tightness that allows you to modernize it just a bit more than the MW.
The Mesa JP2C is just a bit fatter in the preamp than the Mark VII or the IIC+ Reissue, which allows the VII and the IIC+ RI to get just a bit tighter than the JP2C. Similarly, the 90's DR can be dialed and boosted to get just a bit more clanky and aggressive than the MW with the same kind of boost. I also like how the 90's DR sounds just a bit more balanced, smoother, and slightly less naturally scooped overall. It's still raw and relatively scooped compared to most amps, just not as extremely so as the MW. I think it makes the 90's DR sit in a mix better.