I think 124 is more stable. Whyte is bigger highs and lows.
124 has some horrible streetfronts of vinyl and solid walls without windows. The galleries are quiet. Next to no “nightlife”.
Whyte ave has a ton of trendy and cool spots. Major bars and event spaces. More touristy feeling spots, way more retail and foot traffic. Much more vibrant imo.
But whyte also has more noticeable vacancies, disorder, noisier traffic.
Tough to compare. 124th is mostly 30-60 year olds grabbing beers or wine sorta vibe. Whyte ave is sports and music bars, cool retail, gimmicky stores and food.