I have a 1992 Peavey Vandenburgh, a cheap Ibanez EXP (which is actually my favorite) a Takamine EF-350MC acoustic and a Foundation 5-string bass.
I have been playing guiar and bass for about 19 years and have went through a butt-load of string gauges, custom gauges and even bought singles and made my own "gauges." ToO be honest, I would rather take an ass-kicking than maintain or tune my guitars (though I love to play them.) I now use D'addario XL .009 on my electrics and the EXP17 coated phosphorous bronze medium on my acoustic. I am still experimenting on my bass, but because the strings last longer, I haven't tried all of the newer products to decide yet. Some of you will argue with me until the end of the world, but I have found that most electric strings (of the same gauge) are pretty similar. If my local shop is out of the D'addario, it's no big deal. I buy the Ernie Ball .009. A string is not a string on acoustic though. I use the EXP17 exclusively.
As far as tunings, I have tried many different things. I have tuned down to "d" and up to "F" as well as made "high strings" for fullness and overdubbing. I have also tuned to Emaj and Emin and D maj and Dmin to try my hand at slide (which I don't particualrly like or am good at, but it was intersting to try.)
My action on my electrics is set as low as I can get it (making sure my neck is straight) without any fret buzz. I have never measured my actual action. The action on the acoustic is about 3 meters. >
~ Actually, I set it quite high because I don't "do" acoustic solos and the "medium" gauge strings are pretty thick. The high action improves the sustain of the guitar and I am used to the playability downside of it. You won't be playing any Yngwie on my acoustic, but it sounds like a dream.
Bryant