I still support MtGox, they do a pretty good job most of the time:

1) The first round of attacks happened on a weekend when BTC was ~$3.50/USD. They quickly got better hosting and had a great deal of up-time.

2) Today's "compromised account" does not mean your account is in danger; The person holding 500,000 BTC could have had a weak password or (much more likely) a serious virus/keylogger on their PC.

3) Their charts are great and it's really fun for day-trading.

4) They are still the #1 exchange and clearly the best place for a trading experience, IMO.*

*The problem with sometimes not being able to place orders is serious and needs to be fixed.