[madmalkesh]

I Find that War Galleons are easy to defeat and I only use a light sloop!
You might not believe it but the all have differences:

War Frigate : Medium type ship as it is has a "closer to the water hull". This
means that it is able to escape easier. Speed is medium as it would most likely outpace a War Galleon and lose to a War Sloop

War Sloop : This is both small and closer to the water. It can stay far away and is less likely to be hit in the hull. It is a speedy ship and will escape from both opposite types of ships.

War Galleon : This has the most cannon power and good for attacking with both broadsides and cannons however its hull is more likely to be damaged as it is slow and it has high hull.

So buy a...
War Frigate if your more likely to have a crew and go around defeating multiple ships for a good time:

War Galleon if your more likely to be attacking other War Frigates and galleon however with the hull being high be aware:

War Sloop if you need a speedy escape and want to fire cannons from fire away.

PS All games have there triplcate, eg
Speedy-------------------Good at both---------------------Power
Sloop-------------------------Figate-------------------------Galleon