Personally..I think Jack looked a lot hotter in the later seasons. In the first couple seasons, he looked a little chubby, but then around season 6 or 7 he looked a lot slimmer and plus he was wearing those short shorts. :DD

i think he looked better later, too. i much prefer his hair light light brown..almost blonde...than the very dark brown he started out with. i also like his hair when its a little longer, and not so short. so yes, later seasons are sexier.

Oooh, good topic! ;) I personally think he looked really good in Season 3. I liked the clothes he wore and his hair was a bit shaggier (which I like on guys in general).

Jack always looked great, of course, but I think he looked best in season 4, especially towards the beginning of the season. I loved his longer hair.

Season 4, with the longer lighter colored hair.

I liked him with the longer flowing hair too. He was so SEXY back then... ;) So I say season 4 & 5

Yeah... 4 & 5 !!!! :d Total hottie!!