The lightrail is my main form of transportation. I also ride the 19c (METS on Google Maps) a lot which is free. It makes my life much easier, and it really needs to run 24 hours. If they cut the security checks, they could afford it. The security guards are often rude and have harassed me for no reason. There are some nice ones that stick out too though. The buses are often late or early and seemingly not reliable. That being said, I usually enjoy the pleasant demeanor of the drivers. Go with the rail if you can.