"Bonanza,
Solids give you deeper straight line penetration which gives you a good wound channel.
Solids also tend to retain most of their original weight..
Hope that makes sense."

Not really. Because the controled expansion bullet should retain most of it's weight and open up to 1.5 to 2 times it's caliber. However, solids have been in use for 100 years and have proven to be good killers.