Hi,
Just to chime in and add a little...
Re: Danni's points - I agree entirely. I also teach audio production and regularly see students soloing a track to get a tone and then can't make it blend! Time taken over micing to capture a great recording first will be far easier to blend and balance up with less processing needed...
Are two different guitars are better than one doubled? Generally yes IMHO, even with fancy processing! The reason is the harmonic structure of both will be different and therefore less likely to be completely in phase or 180 degrees out of phase which causes boosts and cuts on matching frequencies.
Hope it worked out for you !
Gary