Better valued stock - $COST or $WMT?

$Costco(COST.US)$
Dividend Yield 0.7%
Payout 19%
10Y dividend CAGR 13%
Revenue YoY Growth 7%
PE 37
EBIT margin 4%
Cash $15bn
Total Debt $11bn
$Walmart(WMT.US)$
Dividend Yield 1.5%
Payout 48%
10Y dividend CAGR 2%
Revenue YoY Growth 6%
PE 27
EBIT margin 5%
Cash $12bn
Total Debt $70bn