Ofcourse elbows would be great. I've watched YEARS of MMA and there is a reason elbows are banned from most MMA organizations besides UFC and a few others. It's because elbows cause extreme damage, EASILY creates cuts, and they stop fights. It is considered somewhat of a "cheap move" to do by using elbows to try and stop a fight (too much bleeding) due to doctor's stoppage in MMA. David Loiseau was especially know for his elbows and how he uses them for doctor's stoppage. As of late, Kenny Florian is the new man using his elbows most affectively.
here's a video of some elbow damage...
http://www.youtube.com/watch?v=M1GBLnGRQ5Y