2. OKCupid: Too much info?
If you want the perfect match with a potential "keeper", this could be for you. Aside from the usual suspects you'll need to put in (name, ethnicity, shoe size, blah, blah), it has you answer over 1000 personality probes. Its depth sets it apart from the rest, because by using your the answers, it’s able to give you a percentage of how well you match with other members. It might all seem a bit calculated, but you only have to answer the questions if you want increased chances of finding a Soul Mate. The percentage score is just a guide though, and could be wrong if you haven't both answered the same questions.
Extra costs: US$15 (S$19) a month if you want to be an ‘A-lister’. Additional features include anonymous browsing mode (be a stalker in secret), and the ability to see who's rated your profile
Pros: Extremely detailed compatibility - if everyone answers the same questions // 90% of features available without upgrades // chat without needing to match
Cons: Could take a while to fill out all questions