I usually don’t' say this but do a search and you'll find 100's of what is the "best" car/engine/boat/cat threads and they all have pretty much the same theme.
Most people will say the best car or engine or whatever is oddly enough the model they own.
The more knowledgeable people will rightly say there is no "best" of anything. All engines have good and bad points, some are better value for money, some are easier to tune etc.