I love OSP blades. They are pretty special. I own 3. I have a Virtuoso (Off-), a V'King and a special custom blade where I asked for specific plies and they made it for me. They are all great blades. As I play with them more, they play better and better. I am personally in love with the slowest one, the Virtuoso. So that is the one I am using. But the others are pretty amazing as well. There is just something unreal about the Virtuoso in terms of the quality and amount of feeling, also how soft the top plies are and the flex of the blade.
I will, at some point get a Virtuoso Plus and a Martin as well. I kind of want the whole set.
A question: In your own words: What do you want in terms of difference between the Innerforce ALC and the OSP (all wood) blade?
Do you want faster, slower, more dwell time, more flex, stiffer, more feeling, harder surface, softer?
I think the Virtuoso Plus would be a tiny bit more control than the IF ALC but the IF series have great control. But the VPlus would also be a bit slower. Very close but not quite as fast.
The V'King may be faster and it is light, and the top ply is hard so you need to be more precise when you spin. Once you get the feel of spinning with a blade that has a hard top ply you can generate a ton of spin with it.
My guess is that the Martin would be faster still and weigh a decent amount: between 90-94 grams. I like blades that are in that weight category but not everyone does.
One thing I suggest you start doing if you are going to get an OSP blade is start looking at the head sizes of blades you like. Research it. I know what blade size I like. OSP gives you choices of blades sizes. 150x157, etc. Also weight, which ever OSP blade you get, ask for it in as close to the highest weight they can make. For example the Virtuoso Plus, the weight range is 86-90 grams. I would get it as close to 90 grams as possible. If you do it will play better than the lighter ones.
Also, something to know with blades like this: as you play with them and the wood ages a little, they play better and better.
Hope that info helps. Answer my questions and I will give you more details relevant to what you want.