There are plenty of supposed Steam Deck killers available in the portable gaming space, from the Asus ROG Ally to the Lenovo Legion Go and all the Ayaneo and ONEXPLAYER devices in between. But none of them have managed to outright slay the dragon that is the mighty Steam Deck yet.
I’m also interested to see how the Legion Go will perform/compete. What makes that more interesting than the Ally is the expanded input selection and the “joy con” like controllers. If we could combine that with SteamOS or a similar OS to create a similar software experience, I think it would be a lucrative alternative.
The problem I have with the Ally is that for the performance improvement on the hardware side, you lose input selection, the optimized OS, and the battery life to run the bigger titles. Just not enough “oomph” to push me to commit to another handheld device.