spent a bunch of time on both before buying.
i loved em both. (also several days on an AE, which for commuting in traffic, makes life sweet)
that said, for me at least, the heat coming off the GenI didn't make me love it.
i'm told it's an issue that can be resolved.
Bought the GenII (2010 model, with the manual clutch) for two reasons primarily:
1. the heat issues are generally resolved. (though sometimes while commuting in winter, the heat would be a welcome friend)
2. it was a screaming deal.
3. (also a few more watts of power from the alternator, and in talking to a knowlegable dealer mechanic, he pulled out the new wiring/ground harness and showed it to me. he is very confident it will resolve the spider bite issues... only time will tell.
there are similar screaming deals on both GenI's and GenII's out there... and if the deal was right, i wouldn't pass up a Gen1... and i'd still be one one of the best bikes out there.
I know that doesn't help much, but i know you are trying to gain knowlege here.
the Gen1 vs. GenII debate will never end... and each group will always think theirs is superior.
I,for one, don't agree. i think they are just different, in subtle ways... IMHO, both are superior to 99% of the competition (having spent time on the competition as well)
good luck in your search for wisdom....
BTW, mine wheelies just fine.
and if you were closer, you could take mine out for a day... that might help. but... you are a damn long way west of here...