For what you need Rob...
- Daily Driver
- Some Spirited Driving
- Good on gas
...it's only a matter of keeping your foot from the spirited area and the Civic SI will do great on gas and remind you of the VVL noise that the nissan makes. But if you can't tame the speed demon from within I would say go with the Corolla XRS. Toyota has done well in that sedan.
Maybe you take a test drive in the Honda vs Toyota and make a decision also based on cabin and trunk space, just incase you need to take that into consideration from time to time.
BTW, You have a monster in the garage for "spirited" driving as well if the Toyota is a bit more sluggish than the Honda.