Every boat is different and there is no best boat for all paddling conditions.
You have to know what type of paddling conditions you want to paddle in before selecting a boat. One fundamental trade-off in boat design is tracking vs. turning. There are varying degrees of these two characteristics in all boats, and some boats that track well can be made to turn better if you are willing and able to lean them when you turn, but if you're going to be turning a lot, buy a boat that turns, if you are going straight all day, buy a boat that tracks. Another characteristic to consider is the initial stability of the boat. Low initial stability will make the boat feel 'tender' or 'tippy'.