So many options(redsnow)

[j3wbagell]

there are so many options to choose from

Install Cydia
Install custom bundle
Allow boot animation
Enable multitask gestures
just boot thethered
just enter PWND DFU mode right now

I know I want Cydia but what is all this stuff help please.

[Simon]

cydia is the only option you need to choose

[seann33uk]

custom bundle is for advanced people that want to install apps and tweaks with the JB.
boot animation is ok but slows down loading of device (basically a customizable boot logo)
multitask gestures are annoying gestures brought out to 4.3 but were "cancelled" by apple.
boot tethered is useful for Tethered devices; Boot up from "inifiboot"
not sure about Pwnd DFU mode maybe something tether related.

[Simon]

pwned dfu is used before you restore to a custom firmware. Without it iTunes will give you an error instead of restoring the custom firmware.

[i.Annie]

If you want boot logos different than the standard apple logo, then select allow boot animation. Aside from that like Simon said, you only need to select Cydia.