What are some things to look for as an investor, when comparing two different companies on Yahoo Finance?

(All numbers in thousands)

Company A: Total Current Assets $7,278,000; Total Assets $16,780,000; Total Current Liabilities $3,053,000; Total Liabilities $12,191,000; Total Stockholder Equity $4,585,000; Net Tangible Assets -$1,439,000; Gross Profit $6,005,000; Operating Income $3,399,000; Net Income $1,687,000; Total Cash Flow From Operating Activities $2,402,000; Total Cash Flow from Investing -$251,000

Company B: Total Current Assets $1,373,608; Total Assets $2,406,547; Total Current Liabilities $528,742; Total Liabilities $1,474,094; Total Stockholder Equity $931,637; Net Tangible Assets $569,603; Gross Profit $884,904; Operating Income $339,137; Net Income $247,503; Total Cash Flow From Operating Activities $334,845; Total Cash Flow From Investing -$272,027