Geometry differences between flavors of road bike really only factor in once you're pushing yourself to your limits of speed, agility, distance or the like.

Also, c'mon, getting it up to your apartment is the least of your worries. I can haul my full-squish up and down no problems. Put your riding gloves on your shoulder if you really need a pad.

It sounds to me like you're over-thinking a bit. There are a lot of bikes out there that would make you really happy.

For example, I go back and forth from a tight carbon bike to a beefy steel cyclocross. Once I'm moving, it's about rolling with what I have, and any 'other options' I could have gone with melt away.