When I first started collecting Macross, I thought the movie following the TV series was redundant.  Over time, I really have grown to appreciate it.   
I love the OVA for Macross Plus, but I think the movie is tighter, and flows better.  It's a condensed version of the story, but it is flawless story telling.   
What I am curious about, is Macross Plus was only 4 episodes, and Macross Frontier was 25.   It will be interesting to see how they condense 25 hours of storytelling into 2 hours.   I guess there will have to be sequels.   
Bring it on.  The more, the better.  
I am stoked.  Frontier was a lot of fun, and the throwbacks to the original series was very entertaining.  Great characters, amazing action, and I just dig the VF-25.   
Sometimes, I wish I had a fast forward button.  Can't wait for the Frontier Movie (s).