These are listed by most awesome at top to lest at bottom. All of these have characters actually dating someone and a few of them even have marriage or sex.
Clannad After Story
Eden of the East
Mashiro-Iro Symphony: The Colors Of Lovers (second half of the series)
Zero no Tsukaima (not the first season)
Zanz Bonus Points Tally
8bit_samurai: 1, CodeZTM: 1, Eake4: 2, ibabrak: 5, Mirkosp: 4, tipsd9video: 1, uncreative: 1