I am a fan of the 35's. I have a Marlin in 35 Rem and a 700 in 350 Rem Mag.
I would always choose a 35 Rem over a 30-30. When I hike into my cousins cabin in remote Ontario, I carry my 35. It is the quintessential deer and blackbear rifle in the bush. Ammunition is sometimes hard to find, but I just bought 2 boxes @ Wholesale. I handload, but use factory new ammo in the field. Recently I've taken up casting my own bullets, and depending how my testing goes in spring, I may only shoot lead from now on.
Handloading for the 35 has it challenges, handloading for the 30-30 is pretty straight forward.
Ammunition for the 35 is difficult to find and cost more than 30-30 ammo, 30-30 ammo is the plentiful and inexpensive.
Both the 35 Rem and the 30-30 are range limited, however, when it comes to "smack-down", hard to beat a 35.
For reduced recoil, the 30-30 wins, 125 gr Federal Blue box, and it will smoke a Whitetail.
Another plus for the 30-30 is that just about any brand of 170 gr ammo will shoot accurately and to point of aim, as a rule.
The 30-30 case has a rim, a plus in a tube fed lever gun.
The 35 Rem doesn't deserve to die, I'll do my part to keep it alive, it has my vote.
I wish Marlin would neck up the 308 Marlin Express to 35.