Do you unbox your G4's?

[Koudoawaia]

Usually I unbox them but my Cherry Berry is still in her box because I'm not sure where to put her^^; Plus she does look nice in there next to the wedding cake.

[applejackbunny]

Loose......unless they're MIB, lol! 

I have most ponies loose (all my G1s and G2s are loose) because they take up less space, but, more importantly, because I like to have access to them unfettered by a box!

However, there are certain ponies in the G3s and G4s that for (mainly arbitrary reasons!) are MIB/MIP. All my Winter Series G3s are MIB and all my G4 Snowglobe ponies are MIB...just the way the cookie crumbled...

It's entirely up to you! You could always have one of each if you're in two minds (I did this with Sunset Shimmer...one MOC, one loose!) then you can have the best of both worlds. Might need to choose carefully though if funds are not unlimited (which, sadly, mine are not!) 

[Flitter]

All of my ponies are de-boxed. I used to keep the window box style ones (Zecora, etc.) in their package for the longest time but opened those too recently. The SDCC ponies are the only ones I wouldn't de-box, but I don't own any of those anymore.
Opening them let's me display more uniformly and compactly, I can sell off doubles & accessories I don't need, I don't display with playsets/accessories anyway, and I like to photograph of my ponies too, so de-boxing works best for me.