Investors can't seem to make up their minds about Japan's Internet giant Softbank. Its shares almost tripled last year, making it the second best performer on the Nikkei. But so far in 2014, they've done even worse than the troubled benchmark. A worse-than-forecast drop in net profit on higher sales costs won't help matters. Plenty of analysts are keeping the faith. Out of 15 tracked by Thomson Reuters, 12 give it a buy or strong buy rating. So why are they believers?