Hinged floorplates are the best choice for me. Detachable magazines can become lost or damaged. Feeding is often better from a fixed magazine but jams from a blind magazine can be nearly impossible to clear in the field. Neither do I like to cycle rounds through the chamber to unload. A hinged floorplate allows for quick unloading, makes it easy to clear rounds that don't feed, and allows the magazine to be easily cleaned of debris.
That is not to say there can't be problems with hinged floorplates. A powerful rifle that dumps all of it's remaining rounds on the ground because the floorplate opens in recoil when fired at dangerous game is inconvenient. This is pretty much the only failure one hears with regards to the hinged floorplate, providing that the geometry of the specific magazine allows for reliable feeding, and it should be easily resolved.