Name them!

I'd have to say that my favourite is Doggy. Can't go wrong with a classic

I would have to say some variation of missionary because I like the feeling of being dominated to a certain degree. I like having my arms pinned down and feeling the weight of a body on top of mine... call it a PG-13 Rape fantasy I guess. haha.
69 is also good. All the time! And it's versatile so it doesn't matter if you're into girls or guys.

I have my own position I invented....I call it the "Camel Clutch"...its currently my all time fav

Step 1....The girl needs to lye down on her back with her legs crossed in the air (like sitting crossed legged on the floor only lying down)

Step 2....The guy needs to be on his knees with his legs spread wide apart (so his pelvis is same height as the girls pelvis)

Step 3....Then the guy needs to slide his hands and arms in between her legs and grab onto her waist for leverage.

Step 4....Last but not least the all the guy has to do is insert himself into her and ENJOY!!!!

NOTE
( Your arms or elbows should be snug tight in between her legs under her knees)

( With the girls legs crossed and interlocked, and the guys arms snug tight under her legs/knees....this should form a complete lock )

( You can also vary your grip from her waist to her breasts as well....but its important to hold on to her somewhere tight for leverage and control...once she is locked into place...she is all yours )

( The guy can also lean forward as well, only if the girl is flexible enough...this will give you deeper penetration )