Off the top of my head:

All I Want Is You - U2
I Want To Know What Love Is - Foreigner
Alone - Heart

Peter Frampton - I'm In You.

Peter Frampton - Baby, I Love Your Way.

Bad Company - Feel Like Makin' Love.

Fleetwood Mac - Need Your Love So Bad.

Fleetwood Mac - Man Of The World.

Eric Clapton - Wonderful Tonight.

Joe Bonamassa - Sloe Gin.

Genesis - Carpet Crawlers.

Paul Weller - You Do Something To Me.

Snowy White - Bird Of Paradise.

David Gilmour - On An Island.

Derek And The Dominoes - Layla.

Creed- with arms wide open

Some great choices here!

a couple more

She's like the wind - Patrick Swayze (not officially rock but quite good)
Never Tear Us Apart - INXS
Iris - Goo Goo Dolls
Glory of Love - Chicago
Total Eclipse of the Heart - Bonnie Tyler

Always - Bon Jovi - my absolute fav!

Heaven - Warrant
Blind Faith - Warrant
Heaven - Bryan Adams version though
Please Forgive me - Bryan Adams
Is This Love - Whitesnake
Price of Love - Bad English (brilliant song!)
When I see you smile - Bad English
I remember you - Skid Row

Oh... and most things by Hall and Oates, Air Supply and REO Speedwagon (though I'm not sure the first two are technically rock) - and anything else that Dan Winchester sang along to badly in any episode of Supernatural!

So many more great songs out there...

http://www.youtube.com/watch?v=SmLdkKF4wa8

gd choice I would add Bed Of Roses and Waiting For A Girl Like You

strange how most of the greatt rock ballads are by US bands lol

O i would also add The Flame by Cheap Trick

Or by British bands trying to break into the US market.

And most of the great rock ballads seem to be from the 1980s.

Spot on there
2 out of 3 aint bad &
Heaven can wait by Meatloaf
Sarah by Thin Lizzy
Everyday and How does it feel by Slade
Angie...........Rolling Stones
Valentines Day..........Linkin Park
Breathing............Lifehouse
All my love ........led Zepplin
November Rain........Guns'n'Roses
Afterglow.........Genesis

please dont ask by genesis

Possibly the best song Phil Collins ever wrote and most people have never heard of it. Funny old world ...

awwww had forgotten this one! classic song

also Cutting Crew - I just died in your arms
Marillion - lavender

Slide - Goo Goo Dolls,
IMO much better song than Iris

Bad English - When I See You Smile

http://www.youtube.com/watch?v=ugTPZeo3Lps

Sad Cafe - My Oh My

http://www.youtube.com/watch?v=K75Q-0wMgn0

Sad Cafe - Everyday Hurts

http://www.youtube.com/watch?v=8LNOhZI72AY

aerosmith - i don't wanna miss a thing
& goo goo dolls - iris.

Agree with most of the previous listings, I'd add:

Warlock - Für Immer (For Ever)

everyone said most of what I was thinking but heres a few move to the list

18 days = Saving Abel
http://www.youtube.com/watch?v=GaLxJwqi02k

Your arms feel like home = 3 Doors Down
http://www.youtube.com/watch?v=jejFJ4FvDwE

Life after you = Daughtry
http://www.youtube.com/watch?v=m4gJN2NhSNI

Thing for you = Hinders
http://www.youtube.com/watch?v=1Ie5rgYRZF0

Ill be + Edwin Mccain
http://www.youtube.com/watch?v=CMiVeK5zGz8