I like it that you specified that everything ELSE would be equal, because I would not make a choice based only on color/pattern!
I voted pinto, because I AM partial to painted horses, IF they have a pleasing pattern(I don't care for mostly white,or those with pink skin around the eyes, for instance-and I want one whose 'shape perception' is not adversely affected by where pattern may 'break'--this can be quite tricky, actually, and can be true to some extent of ANY spotting pattern, IMO). Add me also to those who've said they like solid w/ chrome(again, though, I REALLY don't want pink skin around the eyes, so a nice wide blaze, sabino bald face, etc., would probably suit me just fine---IF all the other aspects were in place! (Should add, in these times, though, that I would NOT EVEN CONSIDER having the skin around the eye 'tattooed', for ANY reason...)
Margo