Color is the first consideration for me. The combination of neck/pick guard/body is really important. And the only one of those I can't easily mod is the body. So color is first. I'd rather not swap out the neck if I don't have to (I'm talking to you, Ed O'Brian - that neck sucks) but that's the second consideration. If I can get both of those right and it has the body route for HH and HSS, I'll sort out the rest. I don't play anything stock. Maple boards go with certain colors like whites and pastels in my mind. I like whiter pearl guards with those. Rosewood boards go with darker colors or darker pick guards. Roasted or aged boards can go with either. I don't think there are any bad body colors, just odd combinations with the neck and guard that don't appeal to me. But some combinations are just magic and suck me right in.