Wow, when I saw all the 35mm IS, I was wondering why am I not seeing the "L" version 35mm? It's faster, more expensive. Is the non-L IS better?
The 35 L ii is sharper and faster, it's also three times the price, twice the weight, and doesn't have IS. The IS is sharper than the 35L i. Frankly, the 35 f/2 IS is a great piece of glass at a very affordable price in comparison to most L primes. Would I trade my IS for an 35L ii? Of course! Would I trade it and a 1000$, no way. Also, depending on what you shoot, the IS can be incredibly useful and effectively makes it much faster than the 35L.