I looked and looked and looked and i still think that the Big Bang F1 is much better looking than this one, they have the same movement, sec @ 9, cheaper, ofc is 3mm bigger and 0.5mm thicker but i think that if you put them side by side the F1 wins it! But that's just me, dont get me wrong i like this one too but not as much as the F1.
There are two different watches in terms of Gen.
As regards movement, Gen uses an in house Unico Movement which a lot more better looking and more reliable than the old regular swiss 7750 movement in the Hublot King Power F1.
If it's the reps you're comparing, the movement is the same old chinese movement in both the HB Ferrari and King Power F1. The HB Ferrari rep is just decorated to look like the Unico.
As regards looks I'd say the Hublot ferrari looks a lot more interesting as it's a skeleton style dial .
Size wise the F1 is 48mm while the Ferrari is 45mm but sit on the risk quite similar as I've tried both on in gen.
I've always loved the Hublot King Power build and wished V6 did more variations Of the King power as at now it's just the that F1 in Stainless steel , they didn't even bother with the ceramic version. Personally if V6 took on the Hublot King Power Unico with similar or even better decorated than the ferrari I'd jump on it fast.
As at now i just think the rep HB Ferrari is a better option and far more interesting that Stainless steel King Power one.
If we were to compare a Gen Hublot King Power F1 skeleton version like the Ayrton senna King Power F1 then hands down a better looking piece than the big bang Ferrari in my opinion so a better comparison.
