When I'm roughing for a pedestal lav, I like to trap arm over to it. This keeps the vent over and away from the blocking that I like to put in the wall for the hanger support.
If you need to keep the trap adapter connection close to the wall, use a spigot trap adapter that goes in the fitting.
However, if you are arming over, you can use a street medium 90 and then use the hub trap adapter.
For older bathrooms, I like the Drake II, Promenade, Soiree and Guinevere
Kohler makes a Tresham model.
TOTO Promenade CST424