Thinking in replacing my point and click and finding myself down the version number slippery slope! 
Was considering the MK I to replace my Canon 100S for a bit more IQ and low light sensitivity with the bigger sensor. Then I start looking at the MK II as it's not much more expensive and a few nicer features.
Then I start looking at the III for the EVF....
Anyone have any opinions / views / hands on experience with them to help me decide?
The IV is definitely WAY too expensive for what I want.

Was considering the MK I to replace my Canon 100S for a bit more IQ and low light sensitivity with the bigger sensor. Then I start looking at the MK II as it's not much more expensive and a few nicer features.
Then I start looking at the III for the EVF....
Anyone have any opinions / views / hands on experience with them to help me decide?
The IV is definitely WAY too expensive for what I want.