what do you mean by "maganda ang ride"? comfort or looks? also anong "big tire" gusto mo ikabit? m/t or a/t? a/t tires have better ride comfort than m/t tires, just don't go too low on your aspect ratio. m/t tires naman medyo stiff and mas mataas ang noise level compare sa a/t but you'll have a very good traction sa unpaved provincial roads. yes 20" looks great but hindi sa rim nag dedepedende ang ride comfort. tire size, aspect ratio, tire pressure and suspensions are some of the variables to consider when you want comfort.
ang stock set up sa rig natin is considered above average ride comfort compared to other pick up in its class. but then its a truck so di tayo mka demand ng ride comfort of a sedan.
check out jeff's offroad strada album sa fb. this might help you decide on what tire to install.
http://www.facebook.com/jeffs.offroa...3469807&type=3