I recently did a poll to see whether I should get that Tower Hobbies .46 ABC engine, or a similarly priced Super Tiger .51 ringed engine, the Super Tiger won hands down in the poll, but have a look at the thread and decide for yourself, a number of people did like the TH engine...

[link=http://www.rcuniverse.com/forum/Tower_%2546_ABC_Vs%25_Super_Tigre_%2551_Ringed%3F% 3F/m_2349311/tm.htm]TH .46 ABC vs. ST .51 Ringed Poll[/link]