There are several great brands of saw. Focus on the cylinder displacement of the ms 460, then go to the *closest* shop. Ask for references on their work and call them up. Ask them if they are responsive to needs, if they consistently grind chains well, etc. If you already know the shop a bit, look for employee turnover. I do not buy huskies because the dealer where my mini gets serviced has high turnover. This, combined with the fact that chainsaw service is a clear second fiddle makes me buy Stihl. I used to go across town for service and parts, but a new store opened up. I tracked down the owner, interviewed the employees, and concluded they were well-trained and competent. The employees don't want to leave because the owner is awesome. Now I have a shop just 5 minutes away that can take care of most of my baseline needs, especially if I request things ahead of time.
Lastly, there is a natural progression of saw buying based on the minimum and max size's that you need. I need saws at the ends of the spectrum, so I have an ms 192tc with pico chain, four cheap ms 250 types for ground duty and backup climbing, and an ms 440 with 28" bar. Pie in the sky, I'd start with this grouping, in this order, and work out from there:
MS 661
MS 150
MS 250
However, most of us can't just drop for these two expensive saws. I ended up with a 192tc, a bunch of 250s, and a 440 because of the low cost.
I think the MS 150 is the only unreplaceable saw here due to its narrow bar tip which is super cool for detail pruning, yet can take on the crown of a large tree if you're not craning. Need to watch out for the circle of death a bit more if you're using it, I imagine...
So, for me, the shop location and competence are clearly more important than the saw brand, and the displacement and bar length capability of the saw are the main factors in choosing the model. The ms 460 size is perhaps the best single saw, when equipped with a short and long bar.
Personally, I would exchange the 460 for a 660 if money were not an issue because the 660 runs a much longer bar for stump cuts (and cuts faster with more torque that allows bigger dogs), at only 2 lbs extra for climbing with. It is also useful for chainsaw milling whereas the 460 has a small powerhead for the bar length and is therefore not ideal for milling. But who am I to speak - my granberg 36" double-ended bar setup is arriving Tuesday, so I'll be milling with two 250s, watching my temp gauge closely, lol.