In reply to cavemancolumbus:
Forecast not looking great, with strong winds and lowish cloud. Any rain makes Arrochar schist an ice rink and wild camping pretty boggy.
I'd go for Arran, better rock and camping for potentially damp conditions and choice of decent interesting lower grade routes in various aspects,more interesting scrambling options ( beware a Chir ridge in very high wind though), bouldering options too .
Plenty bouldering in arrochar too of course and strong winds a bonus for that this time of year but some of the boulders with boggy landings and again very slippery rock if soles are remotely wet.