Geoff Pullum has posted some truly intriguing questions: how do we acquire intuitions about the word wronger, given that it is hardly ever used? Why is it so rarely used, given that wrong is so common? (The same goes for right and righter.) And if your intution, like mine (and my wife’s), says that it is pronounced RONG-er and not RONG-ger—why is that, given that the other three one-syllable adjectives ending in -ng, long, strong, and young, all have comparatives whose pronunciations end in -ger? Very strange, and I (and I presume Geoff) welcome both theories and testimonies about how you pronounce (or would pronounce) wronger.