y'know, that bleed that they buffed and moved to his passive?
here is the comparison, the Bleed on Noxian Diplomacy was 10 / 20 / 30 / 40 / 50 Base Damage with a 100% Bonus AD Ratio over (just taking a shot, if you can correct me it would be nice) 3 seconds
Blade's End is (Growing levels 1-11, capping at 11) 60/70/80/90/100/110/120/130/140/150/160 with a 200% bonus AD Ratio over 2 seconds
so now not only does it do more damage in a shorter time, even though you lose out on the stacks for Cleaver, you get more stacks before they even start bleeding, i don't know off the top of my head what the tick is, so lets just say .5 seconds
on old Talon simply hitting them with a Q does the auto damage for one stack, then applies it 6 more times over the duriation of the bleed leading to the last two being the only ones that get the full benefit from cleaver
new Talon requires 3 spell hits so you have 3 previous stacks of cleaver, hitting the auto applies another stack, then you have 4 ticks from the bleed, once again making the last two being the only ones to benefit fully
the difference here is the insane change in damage which is easily more than double
so according to these numbers, new Talon bleed is better
EDIT: I just realized you were talking the MS utility of the bleed from cleaver, thought you just ment damage and so I wanted to check that out, losing 2 ticks of BC worth of MS, however you should have enough damage and mobility to make up for it between Noxian Diplomacy and Assassin's Path if you are in jungle for escapes