The ELD-X in all bullet weights are quick expanding and don't give lot of penetration. They behave on game much like the Hornady SST's or Nosler Ballistic tips. Either of those in 180 gr would be the closest comparable bullet. The ELD-X bullet has slightly better BC's to maintain speeds at distance.
The interbonds are a tough, slow expanding bullet meant for tough, larger game where deep penetration is needed. You can often get by with a lighter bullet and still get good penetration.
The interlocks are a traditional cup and core bullet that works just fine. Just stay with bullet weights traditionally seen as acceptable for the game. They are not the most aerodynamic and lose speed and energy quickly and are not the best bullet for long range work. But they are cheap. Most all of the bullet makers make something similar. Remington Corelockt for example.
I don't like exposed lead tips, so is this polmer tip interbond a decent round for hunting deer and hogs?
The exposed lead tip doesn't hurt anything but aerodynamics. The interbonds will maintain speed and energy at longer ranges. There is more to the bullets than the tip. On deer and small hogs you want quick expansion. The interlock, SST, ELD-X or Nosler Ballistic tip are better choices. The interbond would be a better option for moose, elk or large bear where deep penetration is needed on large game with shots taken at bad angles.
If I were choosing a single multi-purpose bullet it would be Nosler Accubond. They are a bonded bullet that expands well at slow speeds and still stays together to give good penetration. They are quite aerodynamic and perform well at close or long ranges.
Are these worth the expense ($58) per hundred and the effort to try them out?
This is the way I look at it. The money I save buying 200 of the cheap bullets vs 200 premium bullets won't pay for even one tank of gas in my truck. Even at todays gas prices it would only pay for about 2/3 of a tank. That is less than 500 miles of driving. 200 bullets will last me several hunting seasons. The cost of good bullets is simply not a factor long term