What do you prefer and think I should get? Drop away or whisker biscuit? Single pin sight or have multiple pins?
You are going to get lots of preferences based on your question. I prefer single pin because of clarity and drop away because I believe them to be more accurate and quieter. Just my opinion and preference.
I second Marauder. There are downsides though. I forget to move my pin when target shooting and shoot 3' over or below the target. It happens a lot less now but when I first got the bow I'd do it once a week. The rest will depend on your set up and your preferences. Whisker biscuits can be quite accurate and if you're shooting 1-4" groups that may be all you need. It will give your arrow better containment when moving or stalking. A drop away tends to be more accurate because there is nothing in contact with the arrow the moment it is released. However, your equipment can't outperform you as a shooter. If your form and shooting isn't well established you likely won't notice much of a difference in equipment. It's really up to you, your needs, and your budget. I've had multi-pin sights I've loved and hated. I like the single pin I have now but I'm not sure I'll use one forever. I use the QAD drop away and I love it. I get the best of both worlds IMO.
I personally have a drop away and single pin sight but when I first started I used a whisker biscuit and multi-pin. The simplicity of a whisker biscuit is hard to beat if you are just starting out and a multi-pin is a fine way to go also. Just preference really.
I shoot a dual pin slider. Keeps the open sight picture with the advantage of being able to shoot longer distances if needed. My rest is a QAD HDX. Very quick and stable. Doesn't interfere with my arrow. Once I release I don't want anything touching or influencing my arrow flight.
NAP dropaway and SpotHogg single pin... I like the single pin concept, though hunting makes it interesting.
There are a lot to choose from. I don't think a beginner can go wrong with a whisker biscuit for a rest. I started with one and still use one. And a 3 or 4 pin sight is very simple to learn with and help with gauging distances and stuff. I'd start with that before using a single pin. Just my 2 cents. You really cant go wrong with anything as long as you put in the practice.
I prefer drop away rest, I want as little contact with my arrow as possible when shooting. I also like 3 pin sights. I get pretty tunnel vision when shooting, to the point I don't see the level, so I use the pins as a guide that I am at least close to vertical and not torqueing the bow.
I use to use a whisker biscuit and it was very difficult to finally give a drop a way a try. Needles to say, i'll probably never go back. The whisker biscuit works great but I find I'm more accurate and the draw is quiter with a drop away. I currently have the QAD HDX and a 1 pin HHA. I also use to use multiple pins but prefer the 1 pin slider much better. Its all preference.
I've had several sights and am currently using the MBG Ascent Verdict. I hunt a lot in very dark timber and this sight gathers a lot of light. It does have a photo chromatic cover over the fibers to keep it from giving you pin glare in brighter lighting. All in all it is a tremendous sight.
I have a QAD HDX Ultra rest and 5 pin sight. It all depends on what you're comfortable with. I like the idea of a single pin but don't know if I want to deal with taking the time to adjust for the yardage. I hunt fairly open spaces and can get a 10 to 80 yard shot. I wouldn't take an 80 yard shot but could get that range. There are some sights out there that have a 1 or 2 pin fixed and 3rd pin floating you can adjust which may be a good compromise for your situations. I've considered this too but don't have a reason to make the monetary investment right now to just "try it out".
I have been back and forth with single and multiple pin many times and found this same setup to be the best for me. I have one pin set at 20, which covers 95% of my hunting shots. The other is set at 35, which allows gapping out to 40. Beyond that (typically for practice), I can simpy adjust the slider and use the bottom pin as a "floater". As for rests......I have been shooting Ripcord Code Reds for several years with great results. However this spring I found a Trophy Taker XFC (down cable activated) at a great price and put it on my hunting bow recently to test it out. It tuned great, is shooting very consistently......and is quiet. If it continues to perform at the current level, I anticipate having it as my hunting rest this fall.
HHA makes a great sight, I use on my most used bow though a sight by G5. It has 2 pins, one fixed, one floater. I have the floater marked out to 60, when I hunt I have one at 25 the other at 35. 3D is all i use anything long for and you have plenty of time to think than. Biscuits are cool but wear out. Id go for a drop away