If there's one thing I've learned, unless you 100% sure about the absolute length and 100% sure you won't ever change things up, you're far better off going the longer route. I know it's much nicer having short cables... it does make a cleaner more manageable install, but there's nothing worse than a cable that's an inch shorter than it ought to be.
If your performance won't suffer, and the pricing is negligible, get the longer cables.