Definitely not two AWD's. If you get hit by the modding bug on an AWD you WILL lose a good bit of your life savings. One each is a good idea if you can swing the money, that way you get a feel for each. A RWD, solid rear axle car drives much differently from an AWD, IRS car, but after tuning you'll find out which car runs better in what situations, and that's always fun to discover.
For the record, the MR-03 has thoroughly displaced the AWD in racing environments, the car has more chassis flex than the older MR-02 and so it generates incredible amounts of grip. Racing AWD is still fun simply because you can throw infinite power at it and you don't have to worry about driving finesse.
