I was seriously attempting the online dating thing about two years ago. I had paid memberships to match.com, christianmingle.com and another one. I was on okcupid and plentyoffish.
My experiences:
Match.com the few conversations I had were creepy guys looking to hook up.
christianmingle.com a few interesting guys, a LOT of weird ones, and two married guys who neglected to mention the fact in their profile. For me, neither one of those was worth the money. Though, Christian Mingle has active chats and forums, and I have considered rejoining just for that. If christian chat ain’t your thing, it probably wouldn’t be a selling point for you.
Okcupid, was ok. A few interesting guys. But no actual dates.
Plentyoffish a couple of one off dates, but nothing interesting.
Both sites are free, I think you can go premium, but I never saw any advantage to that. They function pretty well on the free basis.
My best experience was on a dating site for guys who like BBW (which I am) My current guy I met there.
I would say for guys, it’s harder. Just sheer numbers make the competition tough. Also, you need to be clear about what you want. You mentioned that you are seeing marriage minded women. There’s nothing wrong with that. If that’s not what you are looking for, then move on.
There are a ton of scammers out there. It becomes pretty easy to spot them. If you want a real person to look at your profile, just shoot me a PM. I’m hardly an expert but I can give you a female point of view.