I've found Futureshop worse than Best Buy, however my town only has a Futureshop, no Best Buy.
Since Best Buy owns Futureshop.. not much difference minus the whole commission thing.
The main difference I've noticed between Best Buy and Futureshop is that as soon as you walk into Futureshop, just to browse, salespeople start hounding you like vultures, I tend to try walking around the sales people. I remember one time buying an external hard drive, I picked it out myself and was already heading to a sales counter, a sales person runs up to me and takes the box from my hands and places it on the counter so that he'll get commission.. uh? what? That kind of angered me, since he didn't help at all.
For Best Buy for me (when I do go to one), I've found that either sales people are impossible to find or they've been right there where I needed them as soon as I needed them, no problems before.
I bought a new MacBook from Futureshop a month ago, the salesperson who sold it to me was pretty mellow, however he seemed quite angry when I rejected the $400 warranty.. $400? Isn't AppleCare cheaper?
Anywho.. bought the MacBook, took it home (it included a free bundle of AirPort Express, iWork and printer so I was pleased), and turned it on, the first thing I noticed was a problem with the screen.. not a minor problem either, it was something that angered the heck out of me whenever I visited websites or when I went through the Menu Bar. It had
THIS problem.
I took the screen back to Futureshop a week later, I was living an hour away from the closest Futureshop, so that was the earliest. I took the MacBook to Customer Service, the girl there noticed the problem instantly because she's a MacBook user herself, she was delightful and said that they will replace it 2 days later since they didn't have any in stock. Anywho.. 2 days later* I came back, did the same thing over again, this time they didn't believe me, even the sales guy who sold me the MacBook took a look at it and didn't believe me, we got a technician to take a look and he basically told me I was bs'ing and that it was a feature, we did comparisons between my MacBook and every. single. Mac. on display and nope.. the problem didn't exist on the other machines, I told him it was a common problem with MacBooks, he kept reiterating that it was a "feature" of Leopard, I sure knew it wasn't, so he googled up "Macbook transparency issues" on one of the floor machines and bases his judgement over some thread here in MacRumours that wasn't even the SAME problem, after an hour of almost ready to demand my money back, they finally agreed to give me a replacement. I was there for another hour since the salesperson was reluctant to get me my replacement MacBook, so 15 minutes before closing, he hands me the replacement MacBook and says "nexttime, get the warranty" and "Macs are garbage, I would never buy a Mac myself", there is no way I will ever buy a computer from Futureshop ever again anyways.. so much hassle to get a replacement on a product that is less than two weeks old.
*Futureshop has a policy where you can return/replace computer for free within 2 weeks, so I was well within that timeline.