MOST of the engine brands are good. I have had excellent luck with OS (FX series), Thunder Tiger (Pro series), Saito and GMS.

The most USER FRIENDLY engines have been Thunder Tiger and OS. TT is the least expensive of these 2, and power and reliability are excellent.

The Saito takes a little tinkering to get exactly right (use a tach with ANY 4 stroke to set it up properly), but after that is fine. The power and reliability of the Saito engine is AMONG THE BEST out there.

The GMS and Tower engines I have had have fantastic power, excellent transitions and a decent idle. They do take a little tinkering to get the idle/transition just right, but not much. The downside I have found with them is they do not want to shut off with the transmitter due to air leaks. Fixing the air leaks is USUALLY not a big deal. The main air leak problem I have encountered is from the front bearing. The price on both these engines is very affordable, especially considering the power received.

I have never tried or used an Evolution engine. The comments and reviews of this engine have been quite favorable. These engines do have the limiters on the high and low end needle valves (easily removed/by passed if needed).

I have never tried or used a Magnum (ASP) engine. The impression I receive from the comments/reviews on the engine is that GENERALLY, they are pretty decent engines.

I have never tried or used an MDS. The impression I have received from the comments on this engine are: If you get a good one, they are great engines - IF YOU GET A GOOD ONE. I would strongly suggest doing a search on RC Universe for "MDS" and then forming your own opinion.

I would also suggest talking to different people at your field and see what they are using in their planes, AND how they feel about their choice of brand and other brands.

As someone new to the hobby, I don't think you will go wrong with either Thunder Tiger Pro, OS FX/AX or a Saito engine. You should have no problems setting them up or afterwards. They usually run great right out of the box. I have had my best luck with the OS #8 flo plugs for the 2 stroke and the OS "F" plug for the 4 stroke. I suggest a 2 stroke engine when starting out as they are less complex than a four stroke (not to mention cheaper).

As with ANY brand of engine, break it in according to the manufacturer's instructions. Pay particular attention to the percentage of oil and nitro suggestions from the manufacturer.

This is MY PERSONAL OPINION of these engines.

Hope this is of use to you.