My suggestion would be RSX Type S only from expericene. The RSX base is good a will do but you might as well go all out. The Si grinding issues has also come up in 02-03 Rsx so try to stay away from those years. I own a 05 S type and I love it compared to my 02 Base. I would weight out the options or Just get the RSX-S
The Si motor is the same as the Base RSX(At least that is what I was told)
Good luck!!