I am surprised Bratty did not come up with

you / ewe / yew


Amongst the ones I love to hate, or is that hate to love, are

broach / brooch

cite / site / sight

sensor / censer / censor

navel / naval

discrete / discreet

cannon / canon


for this site...

soar / sore

whacks / wax


and just for you Oz....

ohhhhs / ooze


ouch.....my head hurts now, this is the stuff with which a dyslexic's nightmare's are filled.