I'll come into this discussion by opening with a statement of strong bias. I have three B-series tractors, a 2410 and a pair of 7510's. I'm a bit of a fan of the B-series tractors.
The B-series brings a good blend of capability and economics. Mine, with 21 engine HP, don't struggle to do any of the jobs I ask of them. I pull a 4' rotary cutter (bush hog), either a 4' or 5' box blade (one on each B7510), and have front-mount snow blowers for all three tractors. There are times when I wish I had more power, especially when trying to move a lot of deep, wet snow, but I've never wished to have a bigger tractor.
The one feature I absolutely would NOT be without is the mid PTO. Being able to mount a mowing deck or a front-mount blower makes the mid-PTO a game changer for me.
When it comes to tires, because I cut grass and blow snow, turf tires are the tire of choice as they give best traction in snow and they don't tear up the grass. My next door neighbor just bought an LX with the new hybrid turf tires - they're pretty good for traction, definitely better than a straight turf tire, but they definitely are a lot harder on the grass.
One thing I've noticed with my neighbor's tractor is that is is LOUD in comparison to my B-series tractors. Noticeably loud. As in my wife notices, and she has significant hearing loss.
The other point worthy of consideration is that a smaller tractor is easier to mount and dismount. Sure, that's not a big deal for youngsters, but as we age, ease of access becomes more and more important.
I wish you luck with whichever machine you bring home. I can guarantee you that you cannot go wrong with any of the models you've been looking at - they will all put a great big grin on your face.