Hey Stang,
Personally I think it's all about your style of riding and there is no bad choice depending on how you use the machine.
I'm about your size and would love to pick up a heritage SFT one day for long rides. I've been riding since '63 and had all kinds of bikes, but back in the 60's sportsters were the king of the hill for performance bikes before the rice burning superbikes hit in the 70's. So I've been a big sporty fan since my first '66 CH and was building strokers back then.
I'm on my third sporty now ('07 1200L) with reworked heads, cams and SE intake/exhaust and am real happy with the machine's performance and do some serious riding (just under 20K miles in three years). You need to get a decent seat though (lots of discussion here on that) that suits your height and butt size. Personally, I prefer mid controls having grown up with them and have never been able to adjust to forwards so chose a Low. However you do give up about 30% of the suspension travel which is important for heavy guys and 2-up riding so keep that in mind.
And yes, I know all about the dyna and softail guys snickering about sporties being chick bikes and all. That is until you ask them to take a little ride and you've lost them right away in first gear at 60 mph/7K rpm (modified) and they are working that six speed well into third a good ways behind you just as you start working second and lose them in the twisties.
I will confess though that I my age and condition, the bike does go on the trailer if I make a long trek like out to the mountains to Deals Gap. But it's usually appreciated by the folks I ride with as they can all load their stuff in the back my rig and ride light. Also, someone invariably has a breakdown or drops a machine riding the Tail, so having space on the trailer for the way back has come in handy.
So please be proud of the sporty. They have a long tradition at H-D and have set more records (including the close relative KR) than any other H-D model ever built. The dyna would never have happened if the glider folks in the 60's and early 70's didn't ended up chopping their bikes to make them look and perform more like CH's.