I own both. After you tweak this and that, use your favorite boosts....
I think it is the convenience of three channels and the ultra brown gain of ch3 on the 5153 vs the classic Marshall crunch. My DSL has winged C EL34's and a few of the NOS tubes Dave was selling in it to make it less 'even' of a comparison right now. The DSL can do very good cleans now. The Ei in V1 and long plate in V2 work together well. The EVH, everyone knows the high gain but you can get pretty decent cleans from the Fender amp.
Gotta withhold judgement until after the weekend and rolling some tubes thru the 5153. I anticipate it can only get better. It could give up a tiny bit of gain for better clarity and be just about perfect. Will get the tube map and see which ones effect which channels.
For the money, they are both cheap. $600 for the used DSL, $1000 for the used 5153. The DSL with the new glass and the OCD out front has some new mojo. Plug in a LP and have some fun. And what amazes me is it is so cheap. And so many cork sniffers slag it....equally amazing.
Great comparison vid.