Everything you do one way will affect it another way!
Stiffer anti-roll bars WILL restrict wheel articulation when on the rough stuff.
You may not want that, but if you don't intend doing really rough off-roading, then strong bars won't make a lot of difference. The anti-roll bars will prevent any "dropping" tyre (one going down into a muddy hole on its own) from placing its full share of WEIGHT on the ground, thus reducing that tyre's traction chances, and possibly allowing that wheel to slip, thus killing traction on that axle (both tyres) and getting you stuck.
This is why Disco TD5 models have their so-called smart suspension, which is great while it works, but how long will it work?
Basically this has STRONG anti-roll bars, which the system can disengage when in low range gears, allowing full axle drop and lift.
In principle, and so far in practice, this system works well.
CharlesY