ChatGPT said: (yet, it is true to me)

SimplePlanes and SimpleRockets cater to different audiences, each with its strengths. However, some might argue that SimplePlanes has advantages over SimpleRockets for specific reasons:

1. Ease of Use and Accessibility
SimplePlanes focuses on building planes and vehicles in a way that feels intuitive. The mechanics are straightforward, making it easier for beginners to jump in and create something that works without extensive trial and error.
SimpleRockets, while offering a similar building experience, often requires more technical knowledge of rocketry, orbital mechanics, and physics, which might be daunting for casual players.

2. Creativity and Variety
In SimplePlanes, the open-ended design tools allow players to create not only planes but also cars, boats, and fantastical contraptions. The physics engine is flexible enough to accommodate wild creativity.
SimpleRockets focuses primarily on rockets and space exploration, which can feel more niche or limiting to those not as interested in aerospace engineering.

3. Ground and Atmospheric Gameplay
SimplePlanes allows for detailed exploration and interaction within atmospheric environments, including airports, islands, and other terrestrial locations. This makes gameplay more dynamic with challenges like dogfights, stunt courses, and ground missions.
SimpleRockets revolves around space, which can be more abstract and less engaging for some players who prefer tangible landscapes.

4. Community and Mods
SimplePlanes has an active community that shares a vast array of custom builds, from realistic aircraft to wild fictional machines. This diversity adds longevity to the game.
While SimpleRockets also has a strong modding community, its focus on realism might make it harder for casual players to experiment as freely.

5. Learning Curve
SimplePlanes is more forgiving, with simpler physics that doesn’t require an in-depth understanding of advanced concepts like delta-v or orbital trajectories.
SimpleRockets, being more simulation-focused, requires knowledge of astrophysics, which can be challenging for players who aren’t familiar with these concepts.

In short, SimplePlanes offers a more accessible, diverse, and creative experience, appealing to a broader audience. However, SimpleRockets excels for those who love space exploration and realism. It's a matter of preference!

Lol, sorry if I incidentally roasted some SR fans - These are just my feeling which aligned with ChatGPT