It really breaks down to deciding what of the two options you want to play. Sorcerer is the "on the fly" caster with more spells per day but limited list. Wizard is a crafter of items and a sage, they have to know what spells they will need before hand and suffer the grumbles of the party when they didn't think to memorize invisibility.
Personally, I prefer sorcerer. I enjoy the versatility it provides, and if I really want to I can craft items with the class (just not as quickly as a wizard). Most of the prestige classes are interchangable with either wizard or sorcerer, so whatever you choose you can still follow the same paths.
Personally, I prefer sorcerer. I enjoy the versatility it provides, and if I really want to I can craft items with the class (just not as quickly as a wizard). Most of the prestige classes are interchangable with either wizard or sorcerer, so whatever you choose you can still follow the same paths.