You can draw almost perfect parallels between most Greek and Roman gods: for instance, Athena and Minerva, Zeus and Jupiter, Ares and Mars, Aphrodite and Venus, Artemis and Diana...the list goes on. Pretty much any major god for either culture had a perfect counterpart in the other culture, it's when you get down to very culture-specific gods that you don't necessarily have a perfect parallel--for instance, Janus, the Roman god of doors and gates.
They are both powerful gods however Cupid is roman and Zeus is Greek
If You are talking about greek an roman gods, it is roman.
They both have greek/roman gods
Hera(Greek) Juno(Roman)
Greek and Roman gods are myths
It depends on which Greek/Roman god/goddess.
Ancient Helenism. Wiccans also worship Greek/Roman gods too.
How they are perceived by the ancient people who worshiped them; the Greek gods as interactive and social, the Roman gods as remote and revered as gods and military.
Both Greek and Roman gods are the same in essence, but have different aspects. Roman gods were taken from Greek gods, but tend to be more warlike and disciplined. Just like the Greek and Roman cultures, the Roman gods were more warlike, disclipined and honorable. The Greek gods on the other hand, tended to merge into the more artistic creative side. However, the main similarity between Greek and Roman gods is simply this: They are both the gods of whatever they were in the other culture. For example, Hera from Greek myths, is still the goddess of marriage in her Roman aspect, or Juno. Another example is Aphrodite, she is still the goddess of love in her Roman aspect, Venus.
The Greek and Roman gods drank Ambrosia
Hades in greek, Pluto in roman.
His Roman name was Mars.