What pair(s) do you trade and why?

Thought it might be interesting to find out what people are trading here and the reasons why. Obviously, the most popular currency pair to trade is eur/dollar, but why exactly is this? Is it the low spread or is it just because you've been told that it's the easiest pair to trade. And how many do you trade at one time - 1, 3, 10? Personally, I concentrate on just one or two, and believe that it doesn't really matter which pair/s you trade, as they all pretty much follow the same ( for me ) technical parameters- if you can trade one, you can trade them all, which makes choosing them all the more interesting. Also, apart from currencies, what else are people here trading - Gold? Oil? S&P? How do you find these differ from trading currencies, if at all?

I trade pullbacks, and breakouts. Sometimes trend-following, sometimes counter-trend.

I look at 24 pairs and and cherry pick 2-to-3 pairs from the top ten with the highest 5-day ADR, further filtered by having bid/offer spreads of less than 3 pips.

I don't avoid heavy news days... I just pick the pairs that are not involved for the day.

Of the 2-to-3 pairs I pick, sometimes I trade just 1 pair for the day, sometimes all of them. I have no bias. If I see a set up that works, I trade it.

This way, I've traded pairs not a lot of traders look at... EURAUD, NZDJPY, AUDCAD etc etc

I tend to be biased against trading majors like EURUSD and USDJPY when it's bullshit-soundbite season, but otherwise, I'm not generally averse to trading majors.

I trade on news so eur/usd, gbp/usd, aud/usd and usd/cad in order of which news breaks first. These pairs have consistent news events. I have tried to trade more than one pair at a time but the stress is too much even when Ive picked the direction correctly for both. Now when I'm onto a winner I keep that chart on screen and ignore the rest but sometimes (actually a lot of the time) my discipline falls short and I look at the other charts and GREED rears its ugly head

eur/usd is popular yes because of low spread, volatility, liquidity and I find the cost for margin is a little lower than say for example gbp/usd...

I think focusing or rather trading one pair as opposed to two or more is smart. On any single pair there are ample opportunities on most days to capture more pips than most people make in a week, so it definitely makes a lot of sense to focus on one or two only. Perhaps there are people who can successfully trade several currencies/commodities/stocks at the same time, but these are few and far between. Personally, I pick a currency with a lot of volatility, and stick to it.

Swing trading I trade almost all pairs, except CHF pairs because I trade their EUR counterparts..

Intra-day my favourites are GBP/USD for london/US session and AUD/JPY for asian session.

Mostly EurGbp, because it tends to respect the support and resistance levels more than others ( it's just my opinion )

big swap pair, too bad i'm stuck with aud-usd right now
also trade if i see a daily s/r at other pair
or just a few cent out of curiosity.

I will trade anything. Trading more markets let me be picky and choose only the highest quality trades. If I only traded majors that would be fine but more tempted to overtrade and not make the greatest plays. Usually about 30 pairs including Gold and Silver.

EU, since I can control it well and my broker offer the spread of that pair very good.

I agree, currently gbp popped up probably continuing long but I'll look at eur for next event. Get in and get out - quick!

I trade EURUSD for the low spread but I also trade with other majors including USDJPY, GBPUSD and USDCHF, which depends what is going on in the news that relate to the currency. I have also traded exotics sometimes when I have seen movements in specific countries. I like doing this with exotics because it is my belief that the majority of the market doesnt follow them so much therefore there is a greater chance to make money.