For long term durability, Titanium Gray seems to be the wisest choice - and Blue, the worst. Eventually the anodizing will chip a bit over the years on the frames and the blue will show it most. 
Im going for Titanium Gray - based on this article. Thanks MR!
	
		
			
		
		
	
				
			Im going for Titanium Gray - based on this article. Thanks MR!

