both very good cars, and like others have said, the euro is more comfortable. so if you're planning on having it as a daily drive/city/highway/cruiser/commuter, then i'd pick the euro for sure.
The DC5S is by no means a slow car. just as capable as a dc2r and dc5r. so if you want a car that'll be good in the twisties i'd choose the DC5S over the euro.
for a car that'll be a bit of both (a daily as well as spirited drive) I'd pick the DC5S as it has "luxury" type features such as leather and sunroof as well. kind of like a half way between accord euro and DC5R except it's just as fast as the DC5R.

