By the way, my friends in Thailand that deal with the Thai military used to tell me that the seals at the Sahatip base were the best elite forces in Thailand and actually had good officers and good maintenance of their equipment. They saw it as an exception to the rule, and the navy in general is more competent than the army even that they made a big blunder with the aircraft carrier.
They've a proud naval tradition, I will concede to this. As to elite ground units, besides the Thai Army Rangers, one unit that I admire is the Thahan Phran:
The Thahan Phran are elite light infantry unit that patrols the contiguous border of Myanmar, Laos, Cambodia, Malaysia. These are excellent anti-terrorist, anti-insurgent units.