HK lipos are not fake, I have had 23 lipos from them. All come properly packaged and within 0.03v of each other.
The cells work great and provide around the mah stated although I haven’t checked properly just based on range I get from them. Many builders here use them and it is generally recommended to get 30-40c plus ratings although I personally have only used 20c lipos and thy all have worked perfectly fine for what I need.
Hobby king is a reseller… so this is kind of a tricky question. All the lipos i bought from hobby king had been great so far. I stick to turnigy (pretty sure this is hobbyking brand) and zippy. There are probably some bad brands on there though.
I used 5 x Zippy Flightmax 8000 2s1p batteries in my first build with a bestech BMS.
I’ve found the power and range f my pack to be great. Having the 5 smallish packs also gives me a relatively thin profile and in conjunction with the way i mounted the batteries have maintained flexibility of my board.
i will ignore the fake’ comment, that makes no sense. They are just a shop. They do reasonable pricing and shipping with a big range.