ETF Battles: Vanguard vs. Invesco: 4 Rival ETFs Battle Each Other - WHO WINS? In this episode, you'll see a 4-way battle between a pair of small- and mid-cap value ETFs from Invesco vs. Vanguard. Author: Apr 29, 2021 In this episode, you'll see a 4-way battle between a pair of small- and mid-cap value ETFs from Invesco vs. Vanguard. Note: I'm excited to be partnering with ETF Guide to bring you their weekly web series, "ETF Battles". ETF Guide founder, Ron DeLegge, explains that in a typical "battle", "each fund is judged against the other in key categories like cost, exposure strategy, performance and a mystery category."