What Silverback said. I have had both and they each had advantages and disadvantages. I still liked the small block stroker for road courses and it would lap as fast as the big blocks. The big block gives you the power and torque normally at a lower RPM range and is great for cruising plus the sound is just deeper. And if you are going to just go in a straight line, I think they call it drag racing, the Big Block is the way to go.
You could also do some searching on this topic as there must be at least 3,000 posts arguing the pros and cons of each.
Ron