Re: Problem and a solution!
I'd go for the RG550 for the maple, the colour and a bit of a legend.
But you must know if YOU prefer a maple or a rosewood fingerboard. There's no better one just a matter of taste. The rosewood fingerboard will give you somewhat darker and you'll get more sparkle from a maple one.
There's also a bullet proof original edge (unlicensed) on the 550 while you'll have an Edge pro on the 2550 which has a cool design but I like it less. It's not as smooth as the Original Edge and it's a bit heavier on the other hand it has a low profile and you don't have to cut the string balls which make you save something like er.. 10 seconds when changing strings.