I keep meaning to try the second one onwards, but, frankly, Alexander kent has a better grasp of how to actually tell a story...
Alexander Kent spins a good yarn, and does write good battle scenes.
Enemy in Sight! is probably the most exciting sailing-warfare book I've ever read.
He's also better than Dudley Pope, who isn't bad. Pope just seemed pallid and insubstantial once I started reading Kent and O'Brian.
But after a while, I found that there just wasn't enough variety in Kent's books to keep me reading. That, and O'Brian's books just had so many other factors in their favour.
And, seriously--"Dick Bolitho"? What kind of name for a hero is that?