arm lock, wrist lock, less wrestling moves are elbow strike tu muscle or locked joint, punch in the throat, kick in the knee, kick to the ankle...ecc.. i hope i helped you..

standing arm lock.
http://www.youtube.com/watch?v=gVX4NV4hdDE

Wrist lock. (it can be performed standing)
http://www.youtube.com/watch?v=1IKEiMsC7fY

actually, in reality it's very hard to perform some wrestling move if the aggressor-victim is unwilling and stronger than you. You have to hit him first to make him "relax" for just a second to take out his strenght. Then you will be able to perform a lock or something else. If you could be a little more specific i think i can help you. sorry for my bad english.

Flying omo plata
http://youtu.be/s9QXH84l-NU

This is really easy to answer, there is none.

In wrestling, judo, BJJ, and all other serious grappling arts the 'best' technique is going to be determined by positioning/orientation, your skill/personal preferences, and your opponent's skill.

The common "high percentage" moves like RNC's and arm bars can easily be less useful than an uncommon technique like various 'suicide throws' or any move that is prefaced with "flying".

Just like there is no best punch or kick there is no best hold, choke, or throw; its all situational.