My all-purpose amp for electrics these days is my Fender Vibrolux Custom. It is a perfect mate for the Blues 90 as it overdrives quicker than most "vintage" Fender tube amps, but you can control it easily by lowering the volume pots on your guitar. The blues sound I get at practice volume - like #2 - with my Blues 90 at full volume, full tone, neck pup only, a little reverb - is fantastic.
BTW, this model and other Fender tube amps (not sure if all) have 5 year transferable warranties. I bought mine open-box on ebay - still have some time on the warranty (never needed it). Not sure if Fender still makes this one, but it is a redesign of the original Vibrolux, 2-10s, 40 watts (sounds much louder). One notable difference from the original 60s blackface Fenders is that the reverb and vibrato work on both the normal and bright channels.