I'm guessing those measurements are in centimeters and not inches?

I'd say both are excellent choices, I use an ATI hybrid, and couldn't be happier (I think

) And will use a larger model for my new build
However: I'd say with the ATI your main light source will be T5, whereas with the Aquatic Life your main light source will be LED with the added coverage of the T5.
Both are "tried and tested", and definitely work! I guess it'll come down to your own preference. I prefer the "cleaner" look of the ATI fixture, especially when hung over a rimless, canopy-less, tank
I'd say though, I wouldn't put a 4-bulb ATI hybrid over that tank, it's in my mind just a little too wide for the 4 bulb. I'd go with a 6 or 8 bulb.