ive yet to see a auto that was decent on gas
I have netted 45mpg on my automatic Celica. Long distance roadtrip, drafted someone the entire time. (Also helps keep the windshield mostly free of bugs!)
For older cars, yes, the automatics sucked. They geared them incredibly tall but that still did not help, there was just too much parasitic loss. Automatics have improved greatly over the years, especially with the advent of ECT. On newer cars it's actually easier to get great mileage on an automatic as you just lightly step on the gas and the ECU will figure everything out for you.
Last tank got me around 31mpg, and that's with no shortage of flatfooting. 35 is easily attainable. Wish I had a 5th gear though. In newer cars this is not a problem...they can have five, six, or seven gears. The IS-F has eight gears!
The automatic Jetta 1.8T was only 0.5 seconds slower at the quarter mile than it's manual brother. Both transmissions had five gears (slightly different ratios).