Personally, I prefer
and
to
and whatever. I like having enough raw AD to burst down an enemy carry, while at the same time not being completely useless against tanks. I feel like Black Cleaver, especially the new Black Cleaver, is a horrible item for Talon. Its 3k gold for 40 AD and armor penetration that ramps up over time. Last Whisper is better suited to Talon because he runs it, does his burst, then runs like hell, rinse and repeat, he doesn't have to ramp up stacks. I'd rather spend 2.3k on all the penetration I need for bursting squishies and get loads of raw AD than grab some item that gives me a shit amount of AD and no armor pen when I need it most. You can get LW and a vamp sceptor instead for your Ravenous Hydra.
So basically the build would ideally be; long sword + health pots >>> 3x long swords and if possible boots >>> boots / brutalizer / vamp scepter >>> last whipser >>> hydra >>> youmuu's or essence reaver. Buy wrath pots in between for roaming power. 10% cdr from youmuu's + 20% from essence reaver + 5% from masteries = near cap.
As he stands, you either roll around with lets say 20% - 25% and are reliant on blue buff, or you roll around with max CDR and HAVE to use the damn Cleaver and are still reliant on blue buff. I love being max mana all the time and never having to go back with Hydra and Reaver