The least time spent in handling firewood is the cutting. The difference in time spent using a 90cc saw vs a 50cc saw is a mute point, unless the wood is huge. Once you guys get a bit older you will pick up the big saw only when necessary...
A nice 50cc saw is generally all anyone needs to cut firewood, clear trails, and do tree maintenance. Most of the time..
A one saw plan is 60cc. But since "one is none" (I only heard that term recently, but have (mostly) lived by it my whole life), it is not a good plan. You need more than one saw. It could include a 60cc saw, but is better served with a 30, a 50, and a 70-90. Expensive proposition! However, you could buy a sweet pro 50cc saw, either husky or stihl and a couple of chinese (shudder!) saws to cover the other ends of the spectrum.
I bought a zenoah 2500 copy in about march off of amazon. It's a little 25cc top-handle saw with the proyama name on it. It felt really weird in the hands at first but fairly quickly became familiar. I wanted a tiny saw to have in/on the primary haying/chore tractor because I hadn't found any decent way to carry any other of my saws on the tractors. The little thing fits perfectly on the off-side steps held securely with a couple of short bungees (because one is none). Anyway, at this point I like it so much I decided I never want to be without one of these things, so I bought a "chainsaw" chainsaw too. That just makes me chuckle. In the meantime I had gained some confidence in these chinese copies and I bought a 660 clone too. That thing just rips! with wicked throttle response and what seems to be never-ending torque.
So those are my three cheap saws. It turned out that I cut at least 1/2 of my firewood with the wee top handles (3-ish cords). They are just so convenient. I think I would prefer a tiny rear handle saw but whatever, I'm not gonna buy an overpriced little homeowner husky or stihl (they are built far more cheaply than the chinese saws) and I'm not gonna spend 7-900 dollars on a pro arborist saw. Oh, and I had after-the-sale interaction with both Proyama and Neotec customer service and I gotta say that it was excellent! This was not about any deficiencies in the saws, btw. In the case of neotec, the saw shipped had the ****** foam filter and cover, where the amazon pictures showed a normal cover and filter, which I wanted. No questions asked, they sent me the correct parts. I have the other stuff in a bag. Proyama contacted me to make a video review of their saw. Well, I made the video with my phone but couldn't post it. Oh well. The back and forth with proyama was excellent too. Those two outfits were far better than most of my "customer service" interactions I have had with almost any companies reps in the last several years, btw.
Aside from those cheap saws I have about 10 others that are all pro saws of husky, jonsered, stihl and dolmar brands. I also have an Echo 590, which is a very good saw for what it is: the best 60cc "farm saw".
What a rambling mess I weave. Sheesh. Anyway Rugger, I would be choosing a pro saw of a convenient size that will do most of your work. For most people, that is 40-60cc. Be realistic.
Me, I'd get a 261 or a mkII 550 knowing that it might spend some time back at a dealer because they really don't have this computer controlled carburetor stuff fully figured out yet. There are still issues, especially in very cold or very hot weather. But for the most part they are mostly trouble free, I guess. And they are simply a pleasure to run. I've run them both. Then I'd get one of those little chinese top handles and a chinese 660 copy. You are now about the cost of that 462 and you have three saws to cover anything, even milling a few boards out of those few big trees..
Or not..
Or wait for the mkII 562.
I said "me, I'd buy" up there...well I actually wouldn't cause I have no need. I prefer older, non-strato, non moronic or autoboom saws. I will likely never have one. I have seen some troubles...I've run several and they are sweet! I've owned a couple of stratos. They went down the road in near new condition. Nothing wrong with them, but I realized that generally, the stratos do not last as long as previously.
Oh, and both Husky and Stihl, and Echo, for that matter, should be forever ashamed of the way they treated customers during the evolution of the epa saws.