Dude, this is all in my opinion. I'm not seriously saying I believe it's better and that's that. You like what you like, I just thought I'd share it because I think it's sick.
Not directly but I've owned and gigged extensively two Riots and now own the Bogner Red. IMO, the Bogner blows it out of the water, and the Riot is a very good sounding pedal. The Bogner just sounds more 'real' and feels better under the fingers to me.
I love mine!
Glad you said that about the 20th mode being a bit stiffer though, I thought the same. Despite it having more gain to the ear, under the fingers the 101 and 100 modes feel more like the XTC I used to own - bouncy. The 20th mode is a bit harder playing but really rocks for more...