The number one in this category (of Top 3 Gaming Mice Under 15) is
No 1) PICTEK Gaming Mouse Wired [7200 DPI] [Programmable] [Breathing Light] Ergonomic Game USB Computer Mice RGB Gamer Desktop Laptop PC Gaming Mouse, 7 Buttons for Windows 7/8/10/XP Vista Linux, Black
1841 Customer Reviews (Amazon – Avg rating 4.3).
18-month warranty .
No 2) Havit Gaming Mouse 7200DPI Computer Ergonomic Mice Wired USB Programmable Mouses for Laptop Desktop PC Gamer RGB
718 Customer Reviews (Amazon – Avg rating 4.2 / 5).
18 Months Warranty .
No 3) Zelotes T90 Professional 9200 DPI High Precision USB Wired Gaming Mouse,8 Buttons,with 7 Kinds Modes of LED Colorful Breathing Light, Weight Tuning Set
160 Customer Reviews (Amazon – Avg rating 3.9 / 5)
12-Month Replacement Warranty
It is clear that the No 1 in this category (Top 3 Gaming Mice under 15) is
because it has more reviews , 18 month warranty and is recommended by Amazon.