NEW YORK (TheStreet) -- A growing debate ignited today pitting two major athletic apparel companies against each other after Nike (NKE) delivered a speedy and heartfelt congratulatory ad last night for the Cleveland Cavaliers' historic NBA Finals win, and as its endorsee LeBron James secured the MVP title over Under Armour's  (UA - Get Report) Steph Curry.

Front Row Partners' chairman and CEO Glen Senk is betting on the underdog: Under Armour, he said on CNBC's "Fast Money Half Time Report" today.

"I'm a huge fan of Under Armour. You know it's a young company, it's 20 years young," Senk stated.

The way Under Armour CEO Kevin Plank, whose motto is "we're just getting started," is approaching celebrity athletes is "pure genius," he continued.

The Curry endorsement makes up for 70% of the company's footwear growth, CNBC's Scott Wapner reported.

"Well, I'm not a sports expert but I love what Steph Curry stands for as a person. I think it was just genius to go after someone (Curry) who has much more meaning than just sports," Senk said.

Because of Plank's strong strategy in "several categories," Under Armour is a better positioned company than Nike, he added.

Over the past three months, Under Armour's stock was down by 12% while Nike's stock saw a 13% decline.

This afternoon, shares of Under Armour are higher by 3.01% to $38.34. Nike stock is rising by 1.62% to $54.58.

(Under Armour is held in the Growth Seeker portfolio. See all of the holdings with a free trial.)

Separately, TheStreet Ratings rated Under Armour as a "hold" with a score of C. You can view the full analysis from the report here: UA

TheStreet Ratings rated Nike as a "buy" with a score of B. You can view the full analysis from the report here: NKE

TheStreet Ratings objectively rated these stocks according to their "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the ratings may differ from Jim Cramer's view or that of this articles's author.