I'll agree with Rob: Picks, strings, etc. are a very personal and subjective thing.
Personally, I can't use regular celluloid picks. I mean I can, but after a few minutes, my right hand gets so sweaty, I can't hold on to the pick. The lack of friction not only makes it harder to hold, it makes it harder for me to feel and controll the strings IMHO.
I like a stiff pick (thin pick's have that spongy feel that adds a delay that I can't stand, IMHO), so I use relatively heavy guage Dunlop Nylon picks (i.e., grey - 73mm).
http://www.jimdunlop.com/products/picks/products/nylon/index.html They sound good (on both acoustic and electric steel strings) and are a lot easier to hold onto and string feel is good with the added friction. They have lots of guages (not just L,M & H) and are available everywhere.
I've read lot's of stuff about pick preferences...including players going thru hundreds to find the right one (McLaughlin?), and others (like King's X's Ty Tabor) who are so dependent on a particular pick that they simply can't play without it, etc.
Strings are the same deal. I've used D'Addario XL nickel steel roundwounds (with plain G) on my electric solidbodies with good results for over 20 years:
http://www.daddario.com/DADProducts.aspx?ID=1&CLASS=AABA (XL-120: 0.009 - 0.042 for 25.5 scale, XL-110: 0.010 - 0.046 for 24 3/4 scale).
I've used D'Addario Phosphor Bronze roundwound strings on my flat-top acoustics (EJ-116 Light: 0.012 - 0.053's for 6str. and EJ-37 Light: 0.010-0.047 for 12str., all with wound G) for nearly 30yrs. and I love 'em.
http://www.daddario.com/DADProducts.aspx?ID=2&CLASS=ABPA My guitar guy uses GHS bulk strings to make up his owns custom sets and the tension, guages and shapes are close to the D'Addarios. When I get a set-up, that's what he uses.
FWIW, I am currently using his custom nickel roundwound strings (O.012 - 0.054) on my Heritage Golden Eagle 17 JazzBox (wound G) with good results. As a pro Jazzer, he bucks the traditional flatwound string convention on archtops.
His advice: Use nickel uncoated roundwounds (electric) for better tone and NO stainless UNLESS you have stainless frets or your frets will be toast. Keep 'em wiped clean and change 'em often.
Cheers,
Kevin
(Message edited by kmh364 on January 31, 2006)