Quoted:
Forget the Winchester, the new ones are very expensive and are all lawyered up with safeties and a rebounding hammer.
Compare the Rossi '92 and the Marlin '94 side by side. Some think the Marlins are heavy and clunky by comparison.
The Rossi's are a bigger pain in the ass to disassemble and reassemble, but you shouldn't have to do that. The Marlins are much easier.
You are just going to have to handle them and decide what you like. We can't do that for you.
I agree with everything except the comment in red.
If you know what you are doing, it's not hard to field strip a Rossi and put it back together. A paperclip, a dummy cartridge, a screw driver and a drift punch are all you need.
I suspect many Rossi shooters are generally clueless as to:
1) how to keep the hammer out of the way when pulling or re-inserting the lower tang,
2) don't understand the use of the dummy round to insert the bolt and lever, nor
3) do they realize you can insert the lugs and lever as one unit with no need to remove the pin between the lugs.
When you know what you're doing, it's a quick and easy process.
I definitely agree with the handling comments. The 1892 Winchester design, by WInchester or Rossi, feels superb in the hand and is wonderfully balanced (with my preference being a 20" barrel rather than a 16" barrel, especially in a .45 Colt).