Here is my wish-list:

LTM gear:
-Leica IIIc/IIIf (IIIg, maybe)
-Cosina 21mm f4.0 Skopar
-Cosina 28mm f3.5 Skopar
-Leica 35mm f3.5 Summaron
-Leica 50mm f3.5 Elmar
-Leica 50mm f2.0 Summitar
-Leica 50mm f2.0 Summicron
-Rollei 40mm f2.8 Sonnar

M gear:
-Cosina 21mm Skopar M
-Leica/Minolta CL
-Leica/Minolta 40mm Summicron/Rokkor

I prefer Leica for 35-50 and Cosina for 21-28. I also value size over speed and prefer lenses with 39mm filter threads.