Voltes V has almost everything you could want in an anime. Cool mecha battles, sword fighting, outer space travel, likable characters, an engaging story and plenty of drama. I'm pretty new to super robot anime and I did not expect that the genre would have something this good to offer.
If you ask me, the best thing about this series is Prince Heinel and the story surrounding him. I can't say too much without spoiling the whole thing, but he's one of those villains that you can respect and even like. If you've seen a lot of anime, the "sympathetic
villain" thing might seem a little cliche, but keep in mind that this was 30 years ago. Prince Heinel was one of the earlier examples of this kind of character.
Despite having a quick temper, he is loyal and forgiving to those who are loyal to him, and grants them many second chances. He is not treacherous or two-faced like many villains are, and has no tolerance for deceit or treachery. Surprisingly, he's a real patriot, and is ready to die for his home planet if need be. Oh, and he's far from painful to look at. Let's just say that he has a very nice character design. ^_~
Anyway, though this series was made in the 70s, the animation is not poor and is actually quite consistent, unlike a lot of other shows where the animation is really, really good at certain moments and poor the rest of the time. It shows its age only because of the art style (which I happen to be fond of anyway).
I found it interesting that there's one thing that this series does NOT have a lot of: romance. Frankly, even though I like romance, I found it refreshing that there wasn't any in Voltes V. It could have easily derailed the whole thing and I'm glad the writers decided to keep it at a minimum.
I haven't said much about the music of this series. I really only have one thing to say: the closing song could not be more appropriate or touching. It's become one of my favorite anime songs.
In closing, if you only see one 70s super robot series, make it Voltes V!