- Good if you care about mostly business in the developed world (Europe and US). - Really, really, really good features, solid visualisation, and a fairly wide breath of writers in terms of opinions.
The Economist:
- Very opinionated, but extremely diverse coverage of lots of different parts of the world (I've never come across a better English language source on Africa, for example). - Weekly, so if you only want to read news occasionally, it may work for you
WSJ:
- Pretty good coverage overall, the US business/tech coverage is much better (in depth) than the FT's - Their opinion section is like the NYT in bizarro-world.
In terms of price FT > Economist > WSJ.
It really depends on what you're looking for, but the FT works for me as a daily driver (I ended my subscription to the Economist, and only signed up for the WSJ about a month ago).