agreed. use tv if you happen to be really good with high angles and parabola and can work with being a well rounded player. higher luck and agility so you can buff better and combo with your items+ crit more often.
nugget if your initial def and attack are meh so you can hit ok. the angle is universal so it works for nearly all shots. it will be slow and have less chance to crit though.
medical kit from my experience if your defense and attack are high is the best weapon to use. you can combo more in one turn like ice and guide on your own for when being double teamed, enrage fly to get away and have a chance to turn the match around with a well aimed pow. just be sure to make your defense rise cause this weapon does lack it. guide fly if you can't fly out of a persons dig too works. more stamina the more you can do in one turn to make the match yours to win. tv is good in this retrospect as well and the defense isn't a con like it would be possibly be on medkit. the angle is just about as universal as nuggets. like sinap said the harm will all be the same so that won't matter.
ultimately it depends on your playing style and how creative you can be on the spot. happy hunting