My dad wanted me to get a DC5R, and was willing to spend more money on one (I got a loan from him). Anyways... I test drove plenty of both of them.

Firstly, if you are a small person... the DC5R isn't for you. I can barely see over the steering wheel, and I look gay in one, and I slide in the seats. The head of Spoon said it's a secutaries car. Now I know why. Nah, really... i drove the DC5R, and it didn't excite me. I would say the FD Civic has a better chassis, and the Euro is a nicer more exciting drive when on the limits. The STOCK K20A didn't excite me at all. Modded is a different story, so I've heard.

The DC2R, is just a pure drivers car... and TBH, if you're buying a FWD firstly, make sure you get a taily one. the DC2R is awsome like that. The back slides around, and awwww, it feels great.
The B18C, is raw, exciting, and slightly higher red line means the world of difference. I love the interior more so than the DC5R. And also the lightness of the DC2 can be felt. I find the DC5 similar to a supra... a boat.

I've always grown up wanting a DC2R, so I could be biased. Who would want a watered down Type R anyways. If you buying an R, at least buy the real thing (Even though the AUDM DC2R isn't "real", it's closer to the real thing that the DC5R).

Just my 2C.