Compressor help! Torn between Keeley and Barber.

[danut]

I just came to the point that I need some compression on my clean/semi-clean arpeggios and strum patterns played on the neck humbucker split, combined with the middle position single coil. (I have an Ibanez RG, with HSH pick-up configuration). They just don't cut through the live mix and I also feel my playing is sloppy and lacks presence.
But here comes my dilemma: since I'll get a compressor, I would like to have it on all the time, which, I'm afraid, would negatively affect the dirty, high gain parts played on the bridge humbucker (SD TB-6 Distortion Trembucker). I wouldn't like extra compression on the high gain stuff, which is already compressed by the nature of distortion. I don't want to turn the compressor on and off each time I switch from dirty to clean/semi-clean, because I hate tap dancing.
So here's my question: out of these two brands (Keeley and Barber), which do you think would better fit my need? I mean, I'd like to find a sweet spot setting where single coil clean stuff benefits from compression yet the bridge humbucker dirty stuff doesn't suffer too much.
Can the Keeley do this if set with level at unity gain and with sustain at, say, 9 to 10 o'clock?
Or is the Barber a better option because of its famous blend control?
Thanks a lot!