Currently you have, as options for a
new 30-30 levergun, the following:
Winchester Model 94 family:
Marlin Model 336 family:
Henry 30-30 family:
Mossberg 464 family:
Each has it's fans and each has it's detractors. It's a matter of personal taste, expected use (scope vs iron sights), and budget. The Winchesters are slim, trim, light, and the original, however, they are expensive, and don't have the tightest actions or crispest triggers and many dislike their rebounding trigger. The Marlins are now made by Remington and currently have quite a rap against them concerning quality control. Further, many don't like the thick stock and forearms but they are d&t for those who want to scope their levergun. They have a cross-bolt safety that allows for a tang rear sight mount.
The Henrys are smooth and well finished but weigh more than the others. Further, they don't have a side loading gate, so they must be loaded like a 22lr; something that annoys many. Finally, the Mossbergs are light and trim like the Winchesters but have a tight action and decent trigger even though it's a rebounding design like the Winchester's. Their design includes a rear strap over the receiver and are d&t for scope mounting. Further, they have a recoil pad so they are comfortable to shoot for many.
Check out each website above and look over the specs, models, and features for each, then go to a 'funstore' and actually handle , shoulder, cycle, and dry fire each. That way you'll be able to assess the strengths and weaknesses of the options and make an informed choice of which one works for you. Personally, I've owned a new 1961 Winchester Model '94 and a new 1963 Marlin 336 back in the '60s but sold off each because they didn't suit me at the time. I currently own a new (in 2012) Mossberg 464 with a walnut stock and pistol grip that I'm pleased with.