My choose "Other User/Gameplay/Admin Feature", "Spray Tracking/Management" and "Teleport Menu+Commands".
"Stats+Ranking System" - we have hlstatsx .
"Weapon Restrictions for CS:S" - we already have a great
plugin for this.
"More Admin Menu Customization" - i think menu is fine.
"Other Scripting/API Feature" - i am not a scripter, but i think sourcemod at this moment needs more admin features than new API features.