I like the trophy ridge sights. they have a lot to choose from. for $50 you can get a 3 pin, its the flatliner model. they also have a 5 pin flatliner. Then for a little more money, they have 3 and 5 pin guide series. same as the flatliner, but painted camo and they have some vibration dampeners in them. they also have a threaded hole to add a light to light up the pins for low light. the pins stay lit very well though, i never need to use the light. the pins are verticle in-line, so they take up less area in the sight picture. if it does get kinda dark, the inline pins can be kind of rough. you cant see the pins, you just see one long dark post sticking up in the sight picture. however, from my experience, by the time it gets that dark, its too dark to shoot anyway, and so it really doesnt matter much. i also like those trophy ridges because the pins dont need tools to be adjusted. they have a little locking lever that keeps them in place, and you can do it all with your fingers, no allen wrenches. you still need a wrench to adjust the entire sight up/down and side to side, but each individual pin adjustment needs no tools. thats really handy for fine-tuning the pins.
i used a tru glo sight a couple years back, was very un-impressed with the durability. i perhaps just had a bad experience, so I'm not saying not to buy one. but i bought one that was broken right out of the package. i returned it to the company instead of the store, and they sent me a new, upgraded model, which was very nice. i was very happy with the customer service. but that sight was also broken right out of the package. so since then, i havent bought any more tru-glo sights. I had a cobra sight before that, that one i had no complaints about. it was several years ago, so I dont know what model it was.
i would look for a sight with a good amount of fiber optic with each pin, at least a couple inches worth. the more the better, it gathers more light. also go with a round pin guard, makes it a lot easier to use with a peep sight if you use one.
i use a .019 pin, but i like the .029 size better. they do cover up a little more target at long distances, but for hunting, it doesnt seem to hurt anything. i have a problem with the .019 pins just being a little too small for my eyes to see. the pin gets really blurring sometimes, and other times under certain light, it disappears all together. i never have those problems with the .029 sized pins, so that is something to consider. the smaller pin is good for precision target shooting, but for hunting, i personally think the larger .029 pins are a little easier to use.
just about all sights are really light, so I wouldnt worry too much about weight. its kind of the industry standard these days. if you want to compete, you have to make light weight accessories, so most companies make their sights as light as they can. if youre looking to spend 50-90 dollars, you can find a real good quality sight in that range. good luck.