Yay straight line speed. Don't ignore steering response, braking, suspension, etc.
But hey, if the power is a deal-breaker for you, oh well.
The problem is that we're talking about ultimately economy cars. None of these cars will ever have truly superior handling aspects.
Just going off edmunds numbers:
Mazda 2014 Mazda6:
60-0 mph (ft.) 128
Slalom, 6 x 100 ft. (mph) ESC ON 63.0
Skid pad, 200-ft. diameter (lateral g) 0.81
Skid pad, 200-ft. diameter (lateral g) ESC ON 0.82
Toyota 2012 Camry:
60-0 mph (ft.) 129.0
Slalom, 6 x 100 ft. (mph) 61.0 (ESC cannot be disabled above 40 mph)
Slalom, 6 x 100 ft. (mph) ESC ON 61.0
Skid pad, 200-ft. diameter (lateral g) 0.77
Skid pad, 200-ft. diameter (lateral g) ESC ON 0.77
For Camry SE:
60-0 mph (ft.) 123
Slalom, 6 x 100 ft. (mph) 64.6
Skid pad, 200-ft. diameter (lateral g) 0.81
Honda 2013 Accord:
60-0 mph (ft.) 128
Slalom, 6 x 100 ft. (mph) 65.2
Slalom, 6 x 100 ft. (mph) ESC ON 65.5
Skid pad, 200-ft. diameter (lateral g) 0.81
Skid pad, 200-ft. diameter (lateral g) ESC ON 0.83
All of these cars will ultimately handle relatively close, and these are under track conditions. Sure the Mazda6 will be more fun to drive, but in the end it doesn't handle day and night over any other sedan. What it does lack, in great amounts, is power.
And because these are economy cars, more than likely you'll never take it to its limits around a track. What you will be doing, day to day, is pulling past other cars, merging, and overtaking. And that's when the straight line power comes in.
Unfortunately, mazda has always been weak in this aspect. You want comfortable and fast, get a camry v6. You want sporty and fast, get an accord v6. You want sporty and anemic, get a mazda.
I have a mazda miata, yes it has superior handling aspects to everything else. But get on the gas and you'll be wishing you had a turbo, supercharger, or damn anything else better than that little 1.8.