Phoenix Models makes a wonderful pattern ARF called the SeaBee that is very capable of pattern style aerobatics. It sells for $99.99 same as your Dolphin .46 ARF and flies very well with any good ball bearing .46 2-stroke:

http://www.youtube.com/watch?v=QZjch3QLpdE

http://www.youtube.com/watch?v=cLvbke2moDU

I flew mine with the Magnum XL .52 RFS and it was an absolute hoot. I lost it a few weeks ago when the right aileron servo extension came unplugged. The plane rolled in from about 150 feet up and there wasn't anything I could do to stop it. Because it's a $99.99 ARF (before Tower discounts), I'll likely buy another. It's an easy build and a fantastic flying aircraft.

A good pattern plane should have mild control throws so it's smooth and not too twitchy when performing aerobatics. It should be stable and fly in a straight line like it's on rails. It should roll axially and should be balanced so it flies as comfortably upside down as it does right side up. A pattern plane doesn't self-correct like a trainer or sport plane. It will go where you point it and keep going there until you tell it to go somewhere else.

I believe that the Phoenix SeaBee .46 ARF is the best flying $99 ARF on the market today. Everybody who's mastered their "second" plane should have one of these. My buddy Fred took my SeaBee to a club meeting for show-and-tell one night while I was working. See the picture below.