O36 for me. Have a 262 also. Both perform about the same. 036 is lighter, more compact feel. Better starter and chain brake, and metal bar cover. The 262 starter feels cheap, same with the brake flaghandle. I owned the 036 since new, 91 or 92, and a vood amount of use. Never even had a carb kit. Replaced the fuel and impulse hoses recently just to be proactive.
The 262 is a non decomp about 94, has less time on it that the 036 and has had 2 recoil pulleys, and 2 partition dividers, which crumbled apart. Also a bad ignition coil.