This is probably the one time in my life where I feel the dubbed version would be preferable to Japanese with subtitles. I wish they'd get the old cast to do the voice overs.
Me personally, the G1 series is the only really valid version of the franchise. When I actually make a real salary I plan to buy a bunch of the original toys and pretend I'm a kid again.
On my list:
Optimus Prime
Ultra Magnus (my first transformer ever, who says bigger isn't better?)
Omega Supreme (have a thing for the strong silent types)
Metroplex (got one B in GYM and my mother refused to deliver stating that I technically did not have straight A's)
Blaster (