I had a general for my first caesarean and a spinal block for the second and forth.
I found with the general, that I was knocked out for a few days and lost alot of my memory of that birth and everything surrounding it.
When I had the first spinal block, it was quite dense and it was in a time where you had to lie still afterwards for 6 hours. I found it alot better though than the general, was alert and awake and remember everything. My only issue was that it was quite high up and for a while there I thought I was going to pass out.
With my last caesar, the block was alot lighter, I could feel pushing and pulling but no pain. By the time I was wheeled out of recovery, I was able to sit in a semi recumbant position (which was fantastic as I got to go to the NICU to see my little ones).

I would advocate the spinal but like the other ladies have said, it is personal choice. You have to feel confident in your method of pain relief.