I have used both, here are my views!
BLU SPARK - FLawless, but slightly gets warm during normal usage (browsing, Spotify, and youtube videos (WIFI) ); Gaming experience - Top notch!
Omega - Best for day-to-day activities! It's buttery smooth with 0 hiccups! But if you consider gaming, Blu spark has a slight advantge but I'm not sure about the technical aspects! No heating issues in omega kernal
I did a 2-hour google meet session (HOST)
Battery lost with blu spark - 35% (40 deg Celcius)
Battery lost with omega - 33% (38 deg celcius)
Asphalt 9 with blu spark 30mins of gaming and room temp - 31 degree
Battery lost with blu spark - 12% (44 deg Celcius)
Battery lost with omega - 11% (41 deg celcius)
Day to day usage and SOT
Blu spark - Getting around 5 - 5.30 hours of SOT (Always 120Hz turned on by AutoHz App / 1440p with adaptive 1080p option enabled) - 16 Hour battery backup
Omega - Getting around 6 - 6.30 hours of SOT (Always 120Hz turned on by AutoHz App / 1440p with adaptive 1080p option enabled) - 1 Day battery backup
For some weird reason, I was getting Gmail notifications using blu spark kernal, but my notifications were missed when I was using omega kernal.
Hope this provides some insight!