Alder is pretty neutral sounding. Ash can get pretty wild looking and have the same tonal properties.
Take a looks at the Warmoth website and look at the wood descriptions.
http://www.warmoth.com/Guitar/Bodies/Options/BodyWoodOptions.aspx
I have always felt unless you are going to the extremes, wood has a minimal effect. I know I have opened a can of worms here. I am not saying it does not effect the tone, just not as much as the pickups and amps.
Mahogany and Korina are a tad warmer (typically)and offer some cool gains. Lacwood has always been at the top of my list to try too.
Poplar and basswood have a very neutral tone but tend to be boring to look at as well. They are usually painted a solid color.