Toto Carlyle vs. Toto Aquia

[baf0]

After spending many interesting hours learning about toilets on Terry's site and this forum, I've narrowed my toilet decision down to the Toto Carlyle or the Toto Aquia. Is there any reason to go with one over the other (other than price, installation differences, and dual-flush options)? This will be a replacement toilet in an existing tiled bathroom.

[Terry]

Carlyle on tile.
one-piece design
Needs 4 holes drilled through the tile.
Skirted bowl
Sanagloss for easier cleaning
Flush of 1.6 gpf
comes with seat
Water supply needs to be 7" to the left of center.

Aquia on tile,
bowl and tank.
Needs 6 holes drilled through the tile.
Takes a little more time for the installation.
Skirted bowl
Dual flush of 0.9 or 1.6 gpf
Saves more water, less water in bowl
seat is ordered separately
Water supply can be 3" to the left of center.

Most spec sheets mention 8" to the left of center for the water supply.