Which of these Chinese tech giants is a better investment right now?Alibaba (BABA 0.27%) and Baidu (BIDU +5.05%) are both bellwethers of China's tech sector. Alibaba owns the country's largest e-commerce marketplaces and cloud infrastructure platform, while Baidu owns its largest online search engine and one of its top streaming video services.Both stocks were once considered stable investments in China's growing economy. But over the past five years, Alibaba's stock declined more than 40% as Baidu's stock ...