Which is better to create a Leviathan?

What is better to create a Leviathan between
Attack Speed Increase: MEDIUM
Charge Time Reduction: MEDIUM
Personally, I already have one which is a charge time low, but I wanted to re-craft it but I'm not sure which would be best. Suggestions are appreciated.

Both are good UVs on a leviathan. If you have to choose one over the other, it would depend on your playing style. I find myself using the charge attack more often so I would pick the Charge Time Reduction. For me the speed is already satisfactory with or without a Vog set. Too bad leviathan isn't also considered a bomb, because I would love to wear a mad bomber set just to beef up the damage on the charge attack.

You CAN get both. It's called 2 UVs. I have Asi med and Ctr low on my da. . It's heat 10 and I wear Vog Set. So you don't wear Vog set? Still Ctr.

It's not like I'm 'that' rich to risk for double UV's and all that... And it's also not like I'm going to get what I want :/

You should probably go with the CTR
Last time I checked, the Levi's charge attack was one of its major selling points, and attack speed increase Isn't noticeable till later, and apparently isn't much of an impact (over-rated ?)
Don't quote me on anything though, I personally haven't had either UV on my equipment, so I can't say for sure
Like everyone is saying, CTR seems preferable. However, I only have a ASI calibur (Very High), and I'm pretty happy with it too, so either one could potentially make you happy!
Probably Ctr if u use in FSC or just anywhere period.