Driveability is defined as: "The sum of a vehicle's driving traits and mannerisms". Over the years, the OE manufacturers (Ford, GM, etc.) have paid more and more attention to drivability, especially in the area of ride quality. A properly modified, moderately lifted vehicle generally rides and steers as well as a stock vehicle. In fact, it is not unusual to actually noticeably improve overall drivability, depending on your choice of suspension, shocks and tires. Again, it is a matter of what vehicle you start with and your aftermarket equipment choices. The decisions you make regarding suspension alterations are important ones. Take time to think about what you are trying to accomplish, and closely evaluate what you have to work with. Do this properly and life will be good.
Most of us own trucks or SUVs that serve multiple roles; our vehicle is primarily a daily commuter, with its other duties being a weekend project "work mule", with possibly a little towing thrown in, and occasionally some off-roading. In this multi-use situation, the goal is to find the proper balance between on-road driveability and off-road suspension flexibility. If you have the luxury of owning a dedicated off-road vehicle, some of its higher speed handling traits can be sacrificed to maximize suspension articulation. Also realize that suspension is only one leg of the performance triad, you must also address the vehicle's tires and drivetrain... the key is to get these three vehicle systems working together to provide the best possible traction at all times. Hey... if it were easy and cheap, everyone would be doing it correctly!
What suspension system will work best for you? It boils down to these four basic factors: