As far as companion spirits were concerned, Blinky was not the strongest in terms of direct combat.
The companion spirits of the expert pilots and most notable ace pilots of the Larkinson Clan could easily beat up Blinky if they wanted. Their power was partially derived from their principals, who happen to possess a lot of extraordinary willpower.
Ves on the other hand was a mech designer. He did not have any direct way to complement his companion spirit in battle. The most he could do was to dive deeper into E-technology and craft different forms of equipment for the Star Cat beforehand.
This was fine. Ves did not create Blinky with the intent to empower him. Blinky existed to assist and complement Ves instead.
In this capacity, Blinky had proven to be a qualified companion spirit. The purple spiritual cat not only possessed greater sensitivity towards E energy than Ves, but also possessed a huge reservoir of E energy based on many different attributes.