I've had both a Winchester Mod 94 and a Marlin 336A with a long barrel. Both were great rifles really, although I liked the Marlin better.
The Winchester was a bit lighter and the "pointability" of that rifle has yet to be duplicated, the thing swings better than Austin Powers. The cons of it in my eyes were it's complicated internal mechanisms (take one apart and you'll see what I mean), the action wasn't as smooth as the marlin, and the forestock & length of pull felt too small for me.
The Marlin seemed to fit me better and the fat forestock filled the hand better. It shot wonderfully! The action cycled smoothly and reliably. It was a tad heavier than the Winchester, but it did have a bit of a longer barrel too (still not much heavier than my Marlin 336 CS in 35 Rem). Most Marlins are already drilled and tapped for scopes on the top of the receiver. Although, my favourite sight combination for levers is a nice set of peep sights which I feel lend themselves greatly to the speed and ranges of brush guns.
Was never a fan of the Savage 99 levers, I found em heavy and the actions cycled like rusty hinge. Never had my hands on a Rossi.
From what I understand handloading for the 30-30 can really wake up the cartridge a bit over the factory offerings. I don't have a 30-30 at the moment, but it always seems I never go long without one.