I'm currently playing 7 for the first time (this was the first for many Americans apparently since it's what was the catalyst for the genre here) and it's quite fun. I've decided that after I'm done that I'm going to start the series from 1 since I feel it's necessary for me to play the series and watch how it grew and developed. I don't really know what to tell you when it comes to playing it in a certain order, my first was X followed by X-2 and then XIII so as you can tell graphics aren't much of an issue at all seeing as I'm enjoying this first play through of VII.
I'd say to start from 1 and play all the way through but it's really up to you.
---------- Post added 2012-02-24 at 07:40 PM ----------
Umm, I'm pretty sure Nobuo worked on X as well...