enter your address and post results remember delete address https://www.btwholesale.com/includes/adsl/main.html
Welcome to this user forum.
Discussing other ISPs is not allowed on this forum.
Your best option would be to read some of the posts about BT Superfast and Ultrafast broadband, which have been posted on boards.
BT Retail do have some good offers at the moment, so its worth taking a look.
If you call in to BT on 0800 800 150 then the agents will be able to tell you about actual speeds in your area. You get a minimum guaranteed speed, and If BT can't provide the guarantee then you can leave without penalty.