Looks - ....................................well, looks aren't everything!  However, if you go for short, bald, nose-less men, then Krillin's your man!

Smarts - He seems like he can get by in life.  The use of his brains were never really displayed, so it's hard to make a judgement like this.

Personality - Nice, funny, sometime short-changes himself and is prone to moments of low self-esteem, and is dying to get a girlfriend and get married. =)

Fighting Skills -  Probably the strongest human fighter in the Z-Gang.  Even though he's not the strongest all-around fighter, he still goes into battles, so you gotta love a guy like that. =)

Special Abilities - Kamehameha, Kienzan, Masenko, Split Form, flying, assorted ki attacks.

Competition - #18, and boy oh boy, she is going to be some major competetion!  She could kick ass in a second, so watch out.  Believe it or not, Krillin and #18 actually have a strong bond, so splitting these two up could prove to be very difficult.

In-Laws -  None, as far as I know

Economics -  He would probably work if you make him.  Make him work hard for the money!

Sex - He'll be so eager to get some that it'll probably be very good, loving and interesting.  I don't know how it would be considering the height issue...=P

Overall - A nice guy, and an overall decent catch.  Life with Krillin would definitely be interesting, to say the least.