Celine Dion - The Power of Love
Celine Dion - Because You Loved Me (This song is/was actually listed by theknot.com as one of the top 10 wedding songs of all time)
98 Degrees - I Do (Cherish You)
Faith Hill - This Kiss
Diana Ross & Lionel Richie - Endless Love
Regina Belle & Peabo Bryson - A Whole New World (i've actually heard this at a wedding i went to last year.. SO CUTE even though it's so disney)
Luther Vandross - Here & Now
Etta James - At Last
some personal favorite love songs (keep in mind i am a HUGE Celine Dion Fanatic [i've seen her twice already in Vegas, and plan on seeing her a couple more times before she ends her show.. lol] so the majority of the songs will be from her):
Celine Dion - Sorry For Love
Rent - I'll Cover You (original or reprise)
The Fray - Look After You
Celine Dion - You and I
Celine Dion with Frank Sinatra (or the original Franky version too) - All The Way
Christina Aguilera - Save Me From Myself (i wouldn't say you can dance/or anything to this, but it'd be nice background music.. if played right or at the right volume.. cuz it's pretty much just her vocals)
Emmylou Harris - A Love That Never Grows Old (from Brokeback Mountain)
Ginuwine - Differences
Il Divo feat Celine Dion - I Believe In You
Mariah Carey - We Belong Together
Moulin Rouge - Your Song
Moulin Rouge - Come What May
Monica feat. 112 - Right Here Waiting For You (or the original would work too)
Pussycat Dolls - Stickwitchu
Toni Braxton - You Mean The World To Me
Ok.. that's it.. I named my most favorite and occasion appropriate songs from my "love list" playlist on my ipod.
Hope it helps!