Venus wars is to me a classic, Its not very very good but I watched it many years ago and by the standart back then it was quite good.
Probably not the best choice for younger fans who cant stomach the outdated animation but it is a fine example of 80's sci fi anime.
Its a decent quick watch, and a peek into the 80's, the golden era of anime, and by this I mean it's better than 90% of modern animes easily...