I think the long bottom tine type is the most versatile. It'll pick up logs, big wads of brush, or even 3' diameter rounds. Having to curl the grapple down so you can 'pinch' a log from both sides has not been a problem for me.
The other day I picked up two 3' 16" thick rounds of Madrone that were on their sides by lining them up and gripping them from above with the grapple curled down. It worked but my loader was not strong enough to curl them up. With the long tines and the way I picked them up they're farther from the pins. But the grip of the lids was strong enough to hold them. So I hauled them like that to by wood processing area.
I think the short tine root rake type which keeps the logs a little closer to the pins would have a bit more curl and lift capacity as a result. And it'd be better for raking.