Wow, for me that pic just reinforces to me how good the old one looks with the new one...
Here's an interesting thing on the height issue too... It's not that tall (the new one) really. It's got a lot of ankle "body glove" exposed for some reason as well, which seems odd, but wasn't painted anyhow. I think the boot/shin armor were pretty compact on the film models, so that's odd but adds to the height... It's not that different though.
To me that pic really shows how the old and new blend together pretty well though... I'm glad for that because I don't like figures looking odd together for sure. It's like the astromech thing... Bar2's not too bad next to the previous sculpt astromechs so I was pleased it wasn't as bad as I was anticipating.
Here's some food for thought on the helmet in particular... And why I think the new one is too large ultimately.
The head isn't made small, which is pretty necessary ultimately, if you want an accurate scale helmet. I've watched 501st guys who put their helmets on, and even with the "give" of the human head (hair/skin able to compress), the Phase 1 helmet seems like it has to be turned to put it on and off a real human being wearing what I would assume is the most accurate "real" armor that one can get... Stormtrooper helmets don't seem to need that but every guy in Clone armor I've seen has to do that to take it off, so I gather it's not that roomy.
Now, the new Clone figure's head is perfectly scaled to the body I believe (seems it to me anyway)... It's not got the "pinhead" thing going on that Cody does so the helmet fits better. This was something other toy companies actually faced... they had to make smaller figures to fit in vehicles at first because the cockpits and stuff didn't allow for the compression of pants and the human body to fit into the tight spaces, and accuracy of the toy meant the figure was sacrificed, so ultimately a figure significantly smaller was the pack-in. But the new Clone's helmet actually falls off it rather easily.
So with that I still like the old SA sculpt helmet better for accuracy, but for "fun" for me I like removable helmets so I like the new one better for that... I really feel like those photos just really show how well old and new blend though. I've not really had my old and new guys lined up like that, so that's a good pic.
I really love the hips and wrist joints... I'm glad to see these turning up in new figures more now. I hope Hasbro keeps that going... I'd like to see it on a few others. I can live without the wrists, but man it's a cool point of articulation. And the hip joints are really the only way armored figures can kneel properly.