Leonardo wrote:So what's wrong with the original, lighter metal they used to use? Is it costly? Unavailable? Ecologically unsound?
I think the new casts might be thicker. It's probably still steel, though aluminum would be cool (heck, maybe I should wish for real titanium...

)
As far as my thoughts on Titanium, I'd give them 3 stars out of 4, though I do not have Megatron, RID Prime (I have the original) or Optimal Optimus (I also have this original.) In order of ranking:
1) Scourge ****: This is one heck of a great nod to G1 Scourge. I do not have a G1 (lost the only two times I tried to get him on E-bay) so I was delighted when I found him. His transformation is simple, but in this case, I think it's best. Alt mode very show/movie accurate. Robot mode fantastic. The only addition might have been a gun of some sort, but I'm okay as is. Of all the Titaniums, I find him the most playable, both transforming and in either mode.
2) Rodimus Prime ****: Finally, a figure worthy of Rodimus Prime!! The G1 figure...well...he sucked! Titanium Rodimus has a great transformation, good posability, good looking fairly accurate robot mode, and a decent truck mode. Yes, he has a couple of issues with a gaping hole through the side of his chest, and the head and shoulders may sit a bit too far forward, but these are really minor nitpicks.
2a) Thundercracker ****: It was really hard to put Thundercracker here behind Rodimus. I think my G1 leanings tend to trump my opinion. That and I'm not real crazy about the War Within designs. However, Thundercracker has all the benefits of Scourge as far as transformation and playability. I do think it's funny how similar the transformation is to Legends Starscream/Sunstorm. Also like Scourge, this figure could use a gun. Still, excellent figure!!
3) Soundwave ***: I never owned a G1 soundwave or Soundblaster so this figure was well received. At least he was until I got the reissue. Aside from his right leg being loose (which I've worked around) and his somewhat awkward looking robot mode, he does have some playability to him. Still, like others have commented, he was so close to being an excellent figure.
4) Jetfire **: I loved the alt mode. It appeals to the Macross fanboy inside me. However, the fact that the "backpack" falls off so easy really makes this toy suffer, in my opinion. You just can't play with him in robot mode. So there he sits on my shelf, all but untouched until I feel like fiddling with him in plane mode.
5) War Within Optimus *: Arms are loose so he cannot hold his gun up. At all. The robot mode looks alright. The transformation is simple, but not tight. Alt mode looks kinda blah. Yeah, my low opinion of War Within is probably showing through right now. This is one I wish I hadn't purchased.
Future Titaniums:
I expect G1 Ultra Magnus to maybe supplant Scourge. He is the one figure I have anticipated almost as much as Classics Jetfire and Megatron. I try to not have too high an expectation, but I was not dissappointed with Rodimus, so maybe this'll be good too.
I like the look of The Fallen. Again, I'm not a fan of War Within, so we'll have to see once I get the figure in my hands. Plus, this might make me actually go out and find the War Within stories. I like what I've read on the concept behind the character.