This is only my opinion so here it goes,
I know the newbies think serve serve serve, however, in rally scoring the other side's server has a better chance of messing up, so just give them a chance.
Think of it this way, you serve and shank or out the ball you lose a point and have to deal with the pain of the bad serve, the other team does it, you have a point and you are off to a excellent start.
I think you should always choose receive in rally scoring.
When playing side out, you always serve first, how are you going to score
