I'm pretty sure that only a handful of people actually read D.C.I.F. ~Da Capo~ Innocent Finale but luckily I'm one of them. Ironically I didn't like Da Capo (the sequel was a bit better though) nor Kotori but I still read the fandisc and that one route was just amazing. The rest of the FD was crap btw. Whatever, the scene you described was pretty damn good (or rather said the entire route except the stupid ending) but it doesn't stand a chance against Clannad and his fucking Nakige roots. And Cannad's BGM is on a totally different level compared to Da Capo. Actually, Clannad wins against Da Capo in every aspect, imo.
ef - a fairy tale of the two. - Yuuko's route, church scene and ending, Desi knows what I'm talking about