I'm not a huge fan of SB, mostly because they change guys for everything, plus the rumours that they keep zombie accounts going (ie real accounts send out messages even if the girl hasn't been on the site on months).
Sugardaddymeet.com (SDM) is pretty good in North America (I believe their office is in Canada), but it also depends on what part of the country you're in. For some reason, Atlanta and parts of Florida (if you're in Canada, Toronto, Ottawa or Vancouver) seem to have a good number of girls. Compared to Seeking, the girls aren't quite as attractive but you also get a lot more willing to meet-up for under $500. SDM also doesn't have Seeking's censors so you'll sometimes see girls asking for PPM and there's probably a fair number of under the radar (UTR) and out and out pros on the platform too.
Was recently browsing SB. Haven't paid for it in ages since it seems to be much more shady than SA (if that's even possible). Anyway, I see that a former arrangement of mine was on there with a newly created profile. Didn't know she was on the site (I met her on SA) but since we mutually ended things a long while back it wasn't a big deal.
Anyway, a day later I get a message from her on the site. I couldn't read the message obviously because I'm not paying. She wouldn't have known it was me necessarily because my profile is largely a blank slate.
So I texted her to catch up and break her chops. When I mentioned the message she knew nothing about it - and I believe her because she checked her sent messages and there was no trace of the correspondence. She's not the type to initiate a discussion with a dude anyway.
After a little detective work we discovered that the site must have auto-generated the message just because I clicked her profile. Even though neither of us could read it I could tell the message was a short one like "Hello" or "Hey there"....the type of message that many subscribers get from random accounts all the time for no reason.
After seeing this (and after a little scolding from me) she deleted her profile on the spot.
I guess it's more proof that SB is scamming folks into burning credits on messages that are not real. Never going back to it.