ScrapeBoard vs Magic Submitter vs Sick Submitter vs Forum Bot.
ScrapeBoard = BS. It's not worth $97, buggy software, with email verification problems, captcha solver is not as good as it seems, low success rate = BS. I love scrapebox though, it's still must-have software for each and every webmaster, however, scrapebox is the only tool from sweetfunny that deserves respect.
Magic Submitter = Great software. You can automate almost everything with it. It's very easy to learn, and it has socket mode. It's little bit buggy sometimes, but overall, it's great. You can add your own sites, fix existing ones and price is great as well. I totally recommend it.
Sick Submitter = I haven't tried version 3, but from what I remember from v2, it's a good software and price is good as well. Can't go deeply though since there were many changes in v3 so maybe software is more powerful now.
Forum Bot = Great software as well. I can say only one thing, and it will make you buy this software - Andrei is the developer, that's all you need to know. Andrei is creator of Captcha sniper, amazing tool which breaks captcha and does it excellently. Captcha breaker is integrated into forum bot which makes it amazing tool and price is too low for this software. You should definitely try it.
Overall, I will choose Magic Submitter, because you can automate anything with it. Social bookmarks, Web 2.0, Forum profiles, Forum Posts, Article directories... Anything... Just try the trial and you will be amazed