Radial Engineering Pro AV2

I've been using these DIs in live concerts and theater for a while now and they never disappointed me.
Passive design means no more searching for the batteries and readiness even in absence of phantom power. Multiple inputs (TRS, RCA and mini-jack) provide true versatility for whatever use you need.
It also works as a dual mono DI (there's even an option to ground lift one channel from another) so it is a true swiss army knife of DIs in my opinion.

The only con that I've experienced so far is that the metal jacket fell off from one of the RCA inputs after quite heavy use.