The Eibachs with the Eibach Springs and Eibach Rear Shocks will outperform the QuickLifts and Rancho 9000XLs due to being a monotube design instead of hydraulic. The Eibachs also have better build quality than the Ranchos. Whether the Eibachs are worth the trouble really depends on how you're using your truck. If you're not going to take it off-road or just use on maintained forest roads, the the QuickLifts will be totally fine. If you're going to be doing anything more significant than that off-road, the I'd recommend the Eibachs.