Well, let's seeeeeee..... 
-For races, I usually go with vampires and aliens. The aliens are usually pretty benevolent, but I have one of them that's fairly famous for being an evil bastard. 
-I usually go with southern or British accents (not all Londoners, mind you.) All of my vampires have southern accents, and my aliens usually follow the old 'All aliens are Brits' cliche. 
-The males are all the ones with the troubled pasts. 
-My Southerners are all hard-working and gentlemanly. They also live on a farm. 
-Most of my male characters are gay or bi. 
-I have 2 female characters. 
-One is a shameless self-insert, but she has every one of my flaws and acts exactly like I do. 
-The other is a designated love interest.