Hey, I've recently gotten back into FFXIII and decided to start from the beginning. Does anyone know of a guide detailing which weapons (and accessories, I guess) are best to upgrade? I'm terrified of putting a bunch of EXP into one weapon, only for it to end up being the worst one I could've picked. I know there are a lot of upgrading guides out there but none of the ones I found really tell you which ones are best to upgrade and why.
Also, if anyone has just some personal advice on the subject I'd really appreciate that too. Am I worrying too much about this, or did you find that upgrading a certain weapon made all the difference for you?