The F-105 I am pretty sure was named the THUD as much for crash losses in peacetime as wartime losses. But overall, I thought it was a pretty decent jet for the time period. It wasn't an acrobatic fighter by any means, as it was pretty big. But it was fast. And it was powerful. The F-105 could carry a big load too. On short range missions it could haul 16-750 lb bombs. On longer missions (such as those flown from Thailand), it was more common to see a bombload of 8-750 lb dumb bombs. The F-105 could also deliver these accurately.
When they encountered MiGs and were jumped, if fully loaded the SOP was to jettison the bombs to aid manuverability. Also, when engaged, the F-105 was to drop down on the deck and accelerate. This was actually it's best defense against the smaller and highly manuverable MiG-17. The F-105 cold simply outrun it and quickly get out of the range of it's weapons. And, even though the F-105 was outside it's element dogfighting the smaller, more agile MiGs, it still managed a respectable kill ratio. I think it was around parity for the war. The F-4 was a better fighter but the F-105 did have one advantage over all Phantoms in Nam (minus the E model F-4) in that it had a 20mm cannon. The AIM-7 Sparrow of that period was horrible. I recall reading where at one point 45 of the missiles had been fired without a single kill. The AIM-9 Sidewinder was better, but it still left a lot to be desired. It was easily confused by the sun for example. So the F-4B, C and D found themselves dogfighting with crappy missiles and no gun. The F-105 downed quite a few MiGs with it's cannon. And the 105 was a pretty tough warbird, capable of taking quite a bit of lead and still bringing it's pilots home.
BTW, here's what the F-105 looked like. These are models, but still very realistic. I have one here I just ordered myself. Mine is diecast and a work of art. I keep it my "war room" along with some other aircraft models and various other military buff goodies. Anyway, here's what it looks like: