Apps You Use.

[jessicalennita]

Preferred launcher: Go Launcher
Preferred music player: Power DVD
Preferred video player: MX player
Preferred browser: firefox
Addictive games: Angry Birds, Dead Space, Final fantasy, temple run
Best SMS app : GO SMS Pro.
These are the best applications i mostly use and i love to play most of the online games like the minecraft, counter strike etc.

[Paul]

Preferred launcher : GO
Preferred music player : PlayerPro
Preferred video player : MX Player / mVideoPlayer
Preferred browser : Dolphin HD
Addictive games : New Star Soccer, Live Holdem Poker
Best clock widget :
Best SMS app : Handcent

Keyboard: Thumb Keyboard

Update

Preferred launcher : GO
Preferred music player : Poweramp
Preferred video player : MX Player
Preferred browser : Dolphin HD
Addictive games : Not playing many games at the minute
Best SMS app : GO SMS Pro

Keyboard: GO Keyboard

[Karl]

Preferred launcher: Nova Prime
Preferred music player: MortPlayer
Preferred video player: MX Player
Preferred browser: Boat Browser
Addictive games: 4 Pics 1 Word
Best app: Mobiles24
Keyboard: Swiftkey X

[Silver]

Preferred launcher: GoLauncher
Preferred music player: Stock
Preferred video player: Don't use.
Preferred browser: Stock/Opera
Addictive games: Angry Birds, FLCommando, Dead Space, NFS Hot Pursuit, Draw Something
Best clock widget: UCCW

Other call apps that I thought deserved a mention: Flipboard, pixlr-o-matic

Update:

Preferred launcher: Apex/Trebuchet
Preferred music player: Apollo
Preferred video player: Stock
Preferred browser: Stock
Addictive games: Shadowgun: Deadzone; Bike Race; Edge EX; CS Portable
Best clock widget: UCCW; Stock

Other cool apps: appgratis, tumblr, indrive

[Vivian]

Preferred launcher: Nova Launcher Prime
Preferred music player: Poweramp
Preferred video player: MX Player/Stock Galaxy S4 Player
Preferred browser: Firefox
Addictive games: Not much... wait... Candy Crush...
Keyboard: Swype

[abce1234]

Best SMS app : GO SMS Pro.
Preferred launcher : GO Launcher EX
Preferred video player : MX Video Player
Preferred browser : Dolphin Browser HD
Addictive games : Shogun: Bullet Hell Shooter HD
Preferred music player : Winamp

[Paul]

Update

Preferred launcher : GO
Preferred music player : Poweramp
Preferred video player : MX Player
Preferred browser : Dolphin HD
Addictive games : Not playing many games at the minute
Best SMS app : GO SMS Pro

Keyboard: GO Keyboard

Update:

Preferred launcher : Nova Prime
Preferred music player : Fusion
Preferred video player : MX Player
Preferred browser : Dolphin HD
Addictive games : Live Hold Em Pro Poker, Pool Live Tour, Dead Trigger 2
Best SMS app : Textra

Keyboard: HTC One default [/QUOTE]

[Vivian]

Preferred launcher: Nova Launcher Prime
Preferred music player: Poweramp
Preferred video player: MX Player/Stock Galaxy S4 Player
Preferred browser: Firefox
Addictive games: Not much... wait... Candy Crush...
Keyboard: Swype

Update:
Preferred launcher: Nova Launcher Prime
Preferred music player: Poweramp
Preferred video player: MX Player / BS Player
Preferred browser: Chrome
Addictive games: Clash of Clans
Keyboard: Swype / SwiftKey
Best SMS App: Whatsapp counted? Don't really SMS anymore
Other apps: Waze, Flipboard

[Noxide]

Just copy Vivians' answer and remove the addictive games line. Ha.

[Michelle]

Preferred launcher: GO Launcher EX
Icon Pack: Cobalt Icon Pack
Preferred music player: Default
Preferred video player: Default
Preferred browser: Default
Addictive games: Maleficent Free Fall
Best clock widget: XWidget
Best SMS app: Default
Best app: Facebook, Clean Master - Free Optimizer, Domino’s Australia, Domino's Offers, OK Scan(QR&Barcode), Flashlight, A Better Camera, Appstore, Play Store, Dr.Web v.9 Anti-virus, aTorrent PRO - Torrent App, PLUS MORE