G400. Better build quality, cheaper, more available, fits your hand better, WAY BETTER SUPPORT, and has been proven to last years.

the AM is hit or miss on build quality, sensor still isn't perfected, switches feel odd depending on how the plastic was molded on yours, and the support will be basically zero if anything goes wrong with it

"fits your hand better"

This, at least, is not a valid reason. Comfort is the most subjective matter regarding mice.

G400 is great, never tried a Zowie mouse.

Totally different shapes. I prefer the AM. Its smaller and lighter with lower LOD and better for my grip style. AM's wheel sucks tho. Click is OK but scrolling is too loud and weird.

Buy both like me and then decide :D

just recently started using one of the new g400 models w/o the angle snapping, best mouse i've ever used...but i've never tried a zowie mouse, i've heard mixed reviews on the AM some really good and some mediocre

only thing is in g400 is drivers heard that it fucks sensitivty or something

buy g400 cause it's logitech, it delivers u the best support, and the best quality

Have the AM , great build quality and sensor is perfect. However the buttons is quite hard to push like mx510 and the shape is also sloping on the sides like the 1.1 which you may or may not like.

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isnt g400 good "enough" with default skates? it will be hard to order replace skates, i dont want to buy tbh. i didnt have any problem with default xai skates

YES