I have just registered, and am interested in getting into the miles game... I fly purely because I am an aviation fanatic... Planes, routes, airports... I just want to have fun and rack up done miles doing it. Any suggestions for where a newbie should start racking up miles? I am based near DTW, and fly DL, UA, JB occasionally, but I actually prefer UA. I'm not ranked or anything... I just want to start piling up miles!

Any help will be appreciated! Thanks!