Wow, those are some absolutely awesome trees to behold. I've loved the Giant Sequoias ever since I visited the US way back in 1987 but, I too had to vote for the Baobab trees. I think they look fantastic. I was amazed at the various shapes these things grow into.
I had to give a sad chuckle at the fate of the "Loney Tree of Ténéré. No other tree for 250 mile radius and someone hit it? That had to be a woman at the wheel

lol.
Thanks for the link Matt. Added it to favourites
All the best,
Aaron