ExpressLRS (ELRS) has been taking the market by storm... and for good reason! 

• Ultra low latency
• Crazy range
• Tiny price tag
• Even tinier antenna and RXs
• Open source community driven features such as bind phrase

So what's the best RX to use then?

First off, you can see all RXs discussed here → CLICK ME

Smallest 

EP2, end of story! (HappyModel or Radiomaster version)

The SMD antenna allows it to be mounted in the tightest of frames. Note that your range will be limited with this antenna. 

Build quality (potentially best range overall too)

Highest build quality, Matek Diversity RX!

2 antenna coupled with Mateks loooong track record of high quality build components. This RX is a bit larger, but still fairly small in the grand scheme of things.

Overall

Best overall, the EP1, end of story! (HappyModel or Radiomaster version) 

Why? It's tiny, the failure rate is decently low (but not zero) and they're cheap! 

One important thing to note, the Radiomaster version is new to the scene (at the time of this writing) and given Radiomasters reputation, it might be higher quality yet. Time will tell. 

Hopefully that helps at least one of you tribe members!

Cheers,