“What is your opinion on using traditional video wall panels vs. tight-pitch LEDs?”
Opinions aside, the decision to use either traditional panels or tight-pitch LEDs should come down to your resources, budget and objectives. LEDs do offer reliability, seamless experiences and maximum brightness. Not all projects need that though. Regardless of technology, ask yourself about necessary image quality, maintenance requirements, audience needs and the content strategy? Is interactivity and touch needed? Does it need to behave like a single display or many? Is the content showing data or pictures? Or both? Is the audience the public/customers, or is this a branded art experience? Is the audience internal so you need the screen(s) for multi-domain conferencing? There is a lot of information and great resources out there to help your project meet the least opinionated approach and use objectives and data to produce the best signage result.