I have done all of these at one time or other in my life. I currently live the bachelor-date-here-and-there lifestyle. Like all three choices, this has its advantages and disadvantages. If I had to choose one I suppose it would be "happily" married...if I could ship all the divorce attorneys off to a desert island just in case.

The limitless supply of Boyfriends/Girlfriends option sounds fairly open-minded.  Over the course of a lifetime I'd suggest that you spend some time discovering each, also throw in some enforced time with just yourself, a great room mate who has similar drinking anf TV watching habits and a period of footloose travelling.

I've done all three (well, except for that limitless part) and they all have their moments. 

As things stand now, and given recent history, I'll take option three thanks.

Well, I certainly would be single for the remainder of my life, so that is automatically removed from my options. I don't really know if I really want to get married, but it all depends on the person that I'm with. Eventually someone might change my opinions on marriage and I might actually go for it; I guess we'll see. Either way, I personally see nothing wrong with living with someone before marrying them.

Co-habitation and eventually marriage.

In my life, I don't belong to any of these categories. I can't cohabitate, it's just not me. Marriage is great, but not now. Limitless supplies of girlfriends sounds tempting, but I rather have one good woman in my life.

Hell, sign me up for all three...and while your at it, get me with Kevin Federline's cell phone number...I'd love to know how he pulled it off.

Women that shack up are stupid. Why buy the cow if the milk is free? Unless you're a ho, don't shack up. This country needs couples that are committed to each other and committed to raising a generation of responsible, functional adults. It's time people start thinking about the harmful consequences of the sexual revolution. It's time people start thinking about issues that are bigger than themselves alone.

Cohabitation for a year or two,hopefully followed by Marriage.I am not a promiscuous guy once I'm in love.

Marriage, then the baby carriage...

Having only experienced the first two choices (the idea of having a "limitless suplly of boyfriends" doesn't really appeal to me), I've found that, in my case at least, the first two aren't all that different. But, since I've got to pick one, I'll pick marriage.