By the time of this short, Marvin the Martian had been around for a few years and had several antagonists. This seems destined to be the cartoon for which he is best remembered, and perhaps rightly so.
It was 1952, and I tend to place Warner's Golden Age a little earlier than most. To me, this came during WB's 'maturing' era, when their shorts were slowly becoming more careful and cerebral (particularly under the direction of Chuck Jones), so, to me, this one is like a breath of fresh air in amongst the predictable and increasingly stale and formulaic Bugs vs Somebody, Foghorn vs dog, Tweety vs Sylvester material (why is it that Warner's villains are so much more likable than their heroes?)
There's something else (well, other than I prefer Daffy to Bugs anyway): I'm a SF nut. Particularly I collect old SF pulps and magazines - and the art design and backgrounds here are just a spot-on parody of early 50's SF magazines (Buck Rodgers, in case you're interested, actually first appeared in 1928 and was already ripe for parody).
Someone below mentions Marvin's dog. He doesn't appear in my (American) cut of this short. I don't know whether I've been duped.
If I were able to apply the decimal system, I may have given this sort 3.7 or 3.8, but I guess I'm ok with it stumbling over the line into the top rating. FWIW, the only other Warner shorts I believe I've given this accolade to are 'Duck Amuck' and 'Ding Dog Daddy', though 'What's Opera, Doc' is in the ballpark.
It's a terrific spoof of science fiction, which is almost uncannily ahead of its time. If there's one thing that annoys me just a little, it's Daffy saying "Duck Dodgers in the Twenty-Fourth and a Halfth Century' - but I guess he only says it three times.