my dad is getin involed with the game and wanted me to ask you (guys) for advice on whats a good buy and whats no no
hes getting the
battle force and farseer and warlock body gaurd
i already metioned converting the gaurdians to stormies with flamers

(my info is probably out of date and rather vague...I hate pointy ears)
You (recently) used to see a lot of
Eldrad, waveserpents, falcons. fire dragons.. and dire avengers as minned out troop choices inside the waveserpents.
2 small jetbikes as troops were the mainstay of Mr6s armies for a long time.
3 Warwalkers as a unit put out so many shots that they are nice.. and autarchs help if your being tricksy eldar pointy eared sneaks with the reserves rules.

Wayy back in the day harliquins and wraithlords were cool..but people tell me that there armies are super friendly because they have them in nowadays.

I'd say pretty much everything in the dex has it's place, except WRAITHGUARD which are pants plus, both in cost (points) and price (£).

Not particularly impressed with quins, either, come to think.

The thing to remember about eldar, is they need to be fielded in supportive groups. Different aspects need to mesh together to get them to work.
In a way, you need a bit of everything to get the most out of them.

Whats wrong with wraithguard, i have 20.