Man I gotta get serious here now lol .... The thing is if you dont have the amps side by side your memory will play tricks on you broski... I have the Fender EVH and a Peavey 6505+ sitting side by side at my home.. Ive compared them several times and let me say that the EVH was my main amp for a long time and I still love it....
With that being said I actually think the clean channel on the Peavey 6505+ is just as good if not better than the EVH , some might prefer it because it has a more open and chimey top end, yes the evh clean is a bit warmer and darker but that doesnt mean its better or it "Obliterates" anything.... (Lets not confuse the 6505+ with the 6505) The 6505 (original 5150) does not really have a clean channel, it was meant to be a dirty clean, so yeah if you are talkin about the 6505 then the EVH has a much better clean clean and so would the 6505+. The 6505+ was designed with a dedicated clean that can be clean with no brakeup.
The only thing the EVH does better than the Peavey is its crunch channel...The crunch channel has something cool goin on that the peaveys might lack a bit , but I rarely used the crunch channel because I felt it could use a little more lowend and could have more gain on tap. If you are someone who uses the crunch channel a lot then I could see liking the EVH over the peavey but once again it comes down to what type of music you are playing.... For Metal the EVH is not better than the Peaveys , I would say any version of the 5150 (Peavey or Fender) is a great choice for Metal, the original 5150(6505) might be "the winner" in that respect because its the meanest sounding and has the most lowend out of the bunch.
As far as lead channels go my EVH sounds so similar to the Peavey, I use the lead channels on both amps for everything but cleans, both amps lead channels do Metal rhythm and lead very well ... The Lead Channel on the EVH might be a bit better for soloing because it has more of a liquid feel, is also more saturated and compressed. The Peavey Lead channel is a bit better for Rhythm because its clearer, tighter and not as dark.. I like both prob equally but cant say either one is "better" (Also keep in mind I always use a Maxon 808 to tighten up the lowend on my amps so that plays a part aswell . I think the lead channel on the EVH is a little looser so it really benefits from the boost... I also set the gain low on both amps lead channels.
If you plan to play Metal on these amps then there is nothing better about the EVH... If you want to have more versatility blues, rock, country, 80s , modern Metal all in one package etc then the EVH might be a better choice.