don't really feel qualified to vote on this especially compared to dudes like ben ufo and blackdown, or anyone else who lives + breathes this stuff, but if no one minds I think I will anyway. also, thanks for calling me a "regular" despite the fact that I'm only around here sporadically nowadays.
also I have some 2-step (well and 4x4) nominations. I checked and I don't think any of these came out (at least officially) before 2000. some are pretty obscure and I have no idea about the context, like what tunes, aside from the obvious ones, were actually big in the dance/on pirates at the time, so it's just tunes I think are cracking.
El-B - Every Little Thing - off El-Breaks 3
Ghost (El-B) - Lyrical Tempo
Brasstooth - Celebrate Life (El-B Remix)
Nitin Sawhney - Sunset (MJ Cole Remix)
Jill Scott - Getting in the Way (MJ Cole Remix)
De La Soul - Ain't All Good (MJ Cole Remix)
Ashanti - Only You (Juicy Joints 4x4 Dub) - could also go under bassline I guess?
Afro Medusa - Pasilda (Raffles Mix)
Nutty Dread Records - NUTTY 3 So Sweet EP
Delinquent - My Destiny (Nu Skool 2 Step Mix)
Obzee + Pedro - Your Love
and finally
Heartless Crew - The Heartless Theme - how did no one nominate this? aren't they like, total hometown cult heroes? I like it as much as Know We at least
also under grime
Trim - Notorious - technically a remix of a dancehall tune I guess but it was on a Trim mixtape so I think it qualifies. also it qualifies by virtue of awesomeness.