I would say that the three "East Asian monsters", i.e. K-2, Type 10, Type 99A1, would come very close together. The K2, for example, sports a very effective fire control network, owing to its advanced thermal sensor and ballistics computer. The Type 99A1 sports probably the most powerful gun of all three, with muzzle velocity of 1780 m/s and the ability to fire DU munitions as well, and it also has a one-of-a-kind laser dazzler than can potentially turn the tables by blinding and disabling enemy optics from 10 km away. The Japanese tank features very advanced armor composition and is very lightweight, suitable for its C-2 transport plane.
Likewise, the three have disadvantages as well. The K-2 has flat frontal armor, which is very prone to penetration especially by DU rounds, and we do not know the current capabilities and defensive measures of the K-2. The Type 99A1 is very heavy, approaching 58 tons, and therefore its logistics will be very severely impacted. The Japanese Type 10 is not known to have active defense measures and next-generation soft-kill and hard-kill systems.
The tanks are suited for each country's terrain, doctrine, role, and usage. Each has their own advantages at the cost of other advantages; these changes make these vehicles a unique product in their place and gives them the supreme capabilities for the roles they are designed for.
K-2:
- Gun: 120 mm smoothbore (1750 m/s, 8000 m range, 15-20 rounds/min)
- Armor: ERA, NERA, composites
- Defense mechanisms: possible hard kill defense system, RWR/LWR, jammers
- Speed: 70 km/hr
- Mass: 55 tons
- Hp/ton: 27.2
- Suspension: in-arm
Type 99A1:
- Gun: 125 mm smoothbore (1780 m/s, unknown rage, 8 rounds/min)
- Armor: Al2O3, ERA, composites (sustains nine hits from 105 mm T-72 gun without damage)
- Defense mechanisms: laser dazzler, hard kill system, soft kill system, RWR/LWR, thermal jammer
- Speed: 80 km/hr
- Hp/ton: 28
- Mass: 58 tons
- Suspension: Torsion bar
Type 10:
- Gun: 120 mm smoothbore (1750 m/s, 8000 m range, unknown rate of fire)
- Armor: Nano crystal steel armor
- Defense mechanisms: jammers
- Speed: 70 km/hr
- Mass: 43.2 tons
- Hp/ton: 27
- Suspension: hydro pneumatic