Melody: "Replay" features a catchy and upbeat melody with a prominent synth-based riff, while "Whatcha Say" has a more prominent pop-oriented melody with a mix of electronic and dance elements. Both songs feature memorable hooks that draw the listener in.
Lyrics and Theme: "Replay" revolves around the theme of reminiscing about a romantic relationship and wanting to relive certain memories. "Whatcha Say" has more playful lyrics and is focused on the joy of dancing and enjoying oneself.
Tempo and Energy: "Replay" is a relatively slow-paced song, emphasizing its laid-back and nostalgic vibe, while "Whatcha Say" is more energetic and fast-paced, encouraging the listener to dance.
Music Video: The music video for "Replay" is set in a picturesque tropical location and features Iyaz performing the song while being surrounded by beautiful scenery. "Whatcha Say" features Justin Derulo dancing in a club with a diverse group of people, showcasing the song's energetic and danceable nature.
Ultimately, the best song is the one that resonates most with you personally. Both "Replay" by Iyaz and "Whatcha Say" by Justin Derulo are well-loved songs that still hold a place in the hearts of many listeners, so it's a matter of individual preference as to which one is considered "better."