Here are the wind settings for the second tree.  If you set the same wind parameters for all trees then I suppose it would look like the same wind (another test for me to try).

I rendered the first tree last week so I don't remember the render time but I don't recall it being super long.
I renedered the second tree this morning with a 2 PC render node.  It took 1 hour at a size of 320 x 240 for a 4 second animation @ 15 frames a second.  I did have indirect lighting on and ambient occlusion.  Despite the time, the effect is rather sweet.

Hope this info helps.