I'm sorry to say, but the majority of this thread (with a couple of exceptions) is a great example of why not to take random advice from the internet (and often, why giving uninformed advice is worse than giving no advice)
Hi TT enthusiasts. Want to ask which blade is better for beginner/intermediate player like me?
If anyone is describing themselves as a beginner/intermediate, I think it's very safe to say they are still learning the sport. And yes, whilst some people have had success with using carbon blades from an early age, unless you have very good coaching.... It's MUCH worse to use a carbon blade if you haven't got the skills yet.
For context, I am currently playing using Timo Ball CAF with Rakza Z in FH and Tenergy 05 FX in BH. I want to improve my game and I want to upgrade the blade since I feel that I don't have that much feel of the ball using the TB CAF.
This part makes it even more obvious that the OP should be using something like a Korbel or Primorac all wood blade (insert other all wood blade here if you aren't a Butterfly fan boy like me).
From what I understand, the Ovtcharov is a very powerful blade very unforgiving made to fit strong backhand from mid-distance.
Harimoto is for close to table fast play, more controlled.
These statements are pretty big, and very specific. It gives the impression that each blade has wildly different characteristics, which is just wrong.
The difference between the blades is very small - 2mm thickness of the core, which makes the OALC quicker, and play/feel more like an outer carbon blade, and the HALC *a little bit* slower, but still much quicker than most all wood blades.
Both blades will be equally at home attacking or blocking.
Both are definitely advanced blades.
We can agree on this!
OP, hard to really comment because we don't know what your level is. But both of these blades are not going to be better for you. Get them if you like the handle or the player, but don't get them if you think you'll improve.
The way to improve is to get equipment where you can keep the ball on the table, feel the shots and play full swings without the ball going everywhere.
If you are a beginner, that would be with a coach and quite slow equipment.
Good luck whatever you do!