Having driven all of these in a comparo last year:
Is it just me, or the Malibu has a full-size nose, a full-size behind and a compact cabin? The only other sedan that is similarly fun-house mirrored is the Fisker Karma.
Still find the Optima so damn sexy. Still
for missing out on buying a new 2013 manual LX for 17,500$ all in but tax (they ran out of cars). It does drive like a big compact on the NVH front, but at that price it was a no-brainer.
Drove the Altima 2.5SL, and yup, it's a floater. In white over tan interior, it's the snowbird's dream ... but not mine.
Camry SE V6 = not built for what passes for pavement in QC. Shocks and springs by Lafarge.
Drove the 4 cyl. Accord Touring. Just about perfect in everything, except for the high-tech radio that sounds like a tin can. Who tunes these things at Honda ?!?
Fusion SE : drove a rental-grade unit with the 1.6EB. Wobbly suspension, engine ran out of breath at highway speeds, trunk lid misaligned on the press car, base radio so beige after you've tried the Sony unit in Titaniums.
Mazda6: great back road dancer, more than decent slushbox, not much room inside, mother-of-all rear-view mirror blocks view of traffic signs and signals, see parallel parking a submarine comment above. Great to party with, but ...