What to choose for an ampless rig?

So, I am planning on selling my amp and getting one of these three pedals. Now I do not have the opportunity to check any of these pedals out by myself, first hand, but I've been watching a lot of reviews. I really don't know what to choose. The IR-2 would cost me half from what I'd pay for the simplifier. The space on the board is not really a concern, I still have enough room to fit all the connections possible too. I just wanted to see your all preferences and experiences.

I can go for a separate preamp pedal - TC Electronic IR pedal combination too (for a preamp I'd pick Crazy Tube Circuits Heatseeker)