Capital One Strat vs LEK?

If you want to go into fintech or consumer banking, but not necessarily strategy, then C1 strat will likely provide a better outcome while paying similarly (at least to start), but with a much better WLB.  LEK will be much better for finance/consulting/strategy roles down the line, and also will lead to higher pay if you end up staying at the firm long-term.

It really depends on what you want to do.  I started out in a role similar to C1 strat, but decided that career path wasn't for me, and am now making the switch to strategy consulting. However, I have seen people do the reverse where they leave consulting for roles more similar to what C1 strat will offer.

For what it's worth, the path C1 strat will lead you down is still fantastic, and there are many roles that will pay 150-250k (or more) while still in your 20s, all while working 40hrs a week.  In my second role at ~1.5,YOE I was paid 165k and averaged 40hrs a week.  Even starting out at C1, you should end up making something like 125k in your first year (~110 + ~5 + ~10 signing)

EDIT: have also heard C1 strat (not generic BA) has the opportunity to switch to PM after a year, which, if true, is a MASSIVE opportunity if you can leverage that into a tech PM job down the line.