Top 5 (in no order):
1. The Heart's Filthy Lesson from 1.Outside
Not just because it's the outro song to the film 'Se7en', it is also a brilliantly multilayered song that could appeal to rock and Electronic fans. There are some great sound f/x and loops which always sound good and never out dated.
2. Scream Like A Baby from Scary Monsters
It's built around a standard but eminently catchable guitar riff but what I love about the track is the odd keyboard lines that seem completely out of sync. Yet they fit. The manipulation of the vocals works too.
3. John, I'm Only Dancing . Single release available on ChangesBowie.
I am not a huge fan of his glam rock era but this catchy number works on a classic glam guitar sound punctuated with some simple but effective guitar work. Outside of his big hits, this track struck me early on in my life.
4. Subterraneans from Low
A wonderful piece of ambient bliss from his Berlin years. Simply gorgeous and atmospheric. His sax work on here is brilliant too.
5. Don't Look Down from Tonight
A very odd choice for me as it is essentially Bowie does Reggae and as a big Reggae fan I don't normally like what is known as 'Cod-Reggae'. Yet somehow Bowie pulls it off and it is just a great upbeat tune from him.
Album: Station To Station
I don't want to eleborate too much on this as a review may be needed in the future

but it remains for me one of his most interesting albums and was quite experimental for Bowie. Outside is very close to being my favourite too.
Similar Artists:
Where do you start?
No chameleon-esque Bowie no Radiohead methinks.
Why?:
Anyone who refuses a Knighthood gains kudos points but the main reason is his willingness to always expand his musical horizons whether he fails or not and have the warmth and intelligence to back his choices up. Vocally he is not the best but for a near 40 year career he is still one of the best British artists to grace our shores.