3 seems like a happy medium between 1 and 5. Also, a bit about me and my GM'ing style: First of all, I go for fun over all else. If everyone isn't having fun, then I have a problem. I like to see people enjoying themselves, so if for any reason you aren't, let me know however you feel comfortable doing so.
Second, I tend toward high amounts of action and an over-the-top, cinematic style. Even when I try to run more down to earth, i somehow end up doing things big. Don't be afraid to take risks, do things that seem cool as hell if impractical, and so on - you are more likely to succeed on cool things in my games, because of the way I use the Inspiration mechanic: rather than handing it out and saying 'use it whenever you want', I just offer a reroll on any failed roll I please. If you accept it, I get one inspiration to use for NPC's at a later time, but you can choose not to accept the inspiration and take your failed roll. Hint: if i give you inspiration for a roll, it means what you are attempting entertained me or I want it to succeed very badly. Make of that what you will
Third, i'll use a few optional rules from the DMG, all of which are self-explanatory: Climb onto a bigger creature, mark, overrun, shove aside, and tumble. More will be posted on the details of those when I get a game thread up.
And last of all: If there's something you've always wanted to do but could never find a rule for it or a character option that exists to make it possible, let me know. I am very, very good at homebrewing. I am the DM you want if you're trying to make a special snowflake character.
In summary: Have Fun, Entertaining the GM is a great way to live longer, using a few optional rules, and tell me if you want to do something and don't know how.
Edit: You can also ask me for an inspiration reroll, but if you do, I get one for my NPC's as well.