Can't have a best thread without a worst. Oddly (or maybe related to the Paste list, perhaps) NME did their 10 worst songs of the 90s http://www.nme.com/blog/index.php?blog=1&title=10_worst_songs_of_the_90s&more=1&c=1&tb=1&pb=1

DiS' David Edwards and Dom Gourlay had a thread on Facebook in response to this with out 100 songs on. My 'picks' include

On a Ragga Tip: http://www.youtube.com/watch?v=gXCN1DhHTZA
Mum's Gone to Iceland http://www.youtube.com/watch?v=-7dmIv3vRLE

Over to you...