advice re: morning trains to canary wharf pls

[seemster]

Does anyone get the 8 or 8.15 or 8.30 from Peckham Rye to Canada Water? Are the trains generally overcrowded or bearable? Do they run on time? I could get on one stop earlier at Denmark Hill but always hear awful things about the jams in the ticket area and stairs..

Would I be better off getting the bus to New Cross Gate from where the trains are more frequent? Or would it make no difference?

Also, what's the change on to the Jubilee line like? I've done it in the day and it's pretty painful squeezing on to the escalators, I have images of absolute mayhem at rush hour...

Wouldn't mind driving if car parking prices weren't so prohibitive.

Thanks for any advice - it will save me doing a practice journey!