1. I don't go a day without showering. My gf showers at night sometimes so she can just get up and go to work. I for one don't 'fully' wake up unless i haz a shower.
2. I HAVE gone w/o showering for a few days in my younger years, and i did not smell. I was told that i smelled great, though.
3. I spend 3 hours at most at the gym, and i do not smell half as bad as those other guys. My gf checks my pits (she has this fascination with asking me to raise my arm so she can smell em), and she does this everytime i get out.
Crotchal area is another story, though.
Pits smelling like the vaj. Hmmm. There have been times where i've played b-ball with a friend who ate prior to gaming. The most recent, dude had a ham sammich. After 2 full court games, he started smelling like ham. So, i presume you are eating too much of the beaver and it's causing it to smell that way.
Somewhat off topic. For you gym rats, have you EVER smelled the bottom of your pants/shorts after a workout? G damn it smells like hell, and it damn sure ain't from me, so i have started to use the towels that they provide to sit on. Fucking gross.