My feeling about the 'alpine climbs' is just jealousy. I'm highly unlikely to ever get the chance to try them and they look so beautiful.
This is why I cherish the one I've done so highly - it was 23 years ago!
But to get back to the OP, I can't think of many climbs I actually
enjoy climbing for the sake of climbing them - there has to be something else about them to give me a reason to climb them, like a good view. If I do a hilly ride, it's more for the challenge than the enjoyment of climbing. Maybe if I can shed a few more pounds, I'll start to enjoy the climbs a bit more. I'd like to have another go at The Struggle when I'm fitter (and preferably in better weather conditions).
Actually, the climb up Ashdown Forest that Martin mentioned in the OP is quite a nice one - it's not too steep, so you can get a decent rhythm going without busting your lungs. I've been up it a couple of times on the Hop Garden 200 and it's especially lovely at that time of year seeing the forest carpeted with bluebells.
(Holme Moss used to be my "I'll pop up the road for some exercise" ride).
Nice. I used to use the Cow & Calf climb out of Ilkley for the same when I lived in Leeds, but that's not a particularly nice climb because it's a main road and you're always mixing with cars.
d.