which firmware for better compatibility

hello everyone

Currently i got 3.40 custom firmware installed (phat psp) and I'm planning to install a later version. These are the homebrew that I'm interested

- psptube
- pikey with targus keyboard (not working atm for some reason)
- psp ssh client
- pimp streamer
- ps one emulation of course
- and all the classic emulators

so which firmware do you suggest i should install ?

Sorry I'm asking you this but i've been away from the psp community a long time and I haven't really followed the news.

Thanks for you support

P.S. any links with guides&downloads are welcome :)

Not sure about these two:
- pikey with targus keyboard (not working atm for some reason)
- psp ssh client

But the rest work perfectly with M33. Some people still use 3.80 or even 3.71 even though 3.90 has come out because, it's a little new and still has some bugs that need to be ironed out, however, I run it and all my emulators work, ps games work (they actually run better, even with popsloader - ex. Tomb Raider never worked before, and all the sudden it does), and I hear that PspTube works fine, even though personally I don't use it.