I am driving from the Midlands to Pembroke Dock early on friday morning, leaving at around 6.30am. I suspect I will hit rush hour on the M4 at Newport so was wondering if I would be better off taking a different route.

My normal route is ...
M5 - M50 - A449 to Ross on Wye - A40 to Monmouth, joining the M4 at M24 at about 8.30am to 9am.

I have never gone this way, but would it be better at that time of day?
M5 - M50 - A449 to Ross on Wye - A40 to Abergavenny - A465 to J43 of the M4.

Thanks in advance...