jamesons is ok to be honest, not the best but for a run of the mill bottle its fairly good. something like that though i'd probably be drinking with coke like most of your cheaper whisky or if irish then whiskey. my favourite mixer for cheap whisky is ginger wine or canada dry. as for the distilleries in ireland i'm pretty sure their are four.
good shout on the islay whisky by the way though i would say its for the more experianced whisky drinker. due to the levels of peat in the water its a very smoky drink which people who haven't drunk a lot of scotch might not appreciate. can't agree at all that macallan 12 year old is no better than cheap blends. its not as good obviously as a 25 year old but then not everyone has 100 odd quid to spend on a bottle of whisky and i'd much rather spend 22 to get a bottle of macallan than 13 to get whyte and mackay.
also saying to stay away from blended whisky is just wrong. years ago yes its good advice but there are a lot of really good blends on the market these days. a favourite of mine is a whisky called "sheep dip" - the name comes from back in the day when people used to illegally distil there own whisky they'd hide it from the government in vats and claim it was sheep dip - which is an excellent whisky that compares favourably to a lot of malts.
as for my favourite malts in no particular order i'd say:
buinnahabhen - an islay whisky pronounced boon a ha bin
caol ila - islay again prounounced cool eel a
highland park - made in orkney
jura - made obviously on the island of jura
and edradour which is made in the smallest distillery in scotland in perthshire.
incidentally when i was in the bar at the edradour distillery i had a 40 year old benriach which was probably the nicest drink i've had but unfortunately couldn't justify the £100 for a bottle.
if you're wanting beer then i'd try and stay away from american beers, there are exceptions mainly the small independant brewers but the big ones like bud, miller, coors etc are not beer at all. anything with light in the name isn't worth drinking. mexican beers tend to be really good, corona is the most readily available at least over here but if you can find modena or dos equis then you're on the right track. german and belgian beer though to me is the best in the world with my personal favourites being lowenbrau, a munich beer, and astra which is brewed in hamburg.
so far when i've been saying beer i've meant lager but a bit closer to home - for me - the lager is pretty poor (again excepting small independant brewers like the hebridean brewing company or isle of arran which both make an excellent lager) the english for all their negatives to no how to brew a good ale and up here we also have some great ales notably fraoch a heather ale.
i've recently started drinking tequila a lot more often and have discovered that its really nice with orange juice, the tequila has a strong enough flavoir that it doesn't get lost in the juice the way a vodka would.