You can compare brokers that meet your requirements. if you are a scalper you will need tight spreads and you can get away with high commission if you are a swing trader you can work with large spreads and zero commission its all based on your requirement, compare and chose the best amongst the ones regulated.
I recommend trading with an ecn pricing broker, FP Markets; they have a robust trading condition with some of the lowest spreads and slippages.
customer support is really important , i agree . but the more important is when time to withdrawal , generally the good broker never long traders withdrawal.
security of funds with a wide range of trading technologies should first priority , otherwise it could be a wrong decision.
Don't feel the need to only use one if a few might work for you. I mix up between regulated and unregulated depending on what I am trading and with what size with IG, IC Markets and CedarFX and thus far have found all do the job for me. I love IG's trading platform and their reputation, ICM allows me to make use of decent leverage if I use their SC accounts while retaining some regulatory protection while CedarFX, while unregulated actually pay out the quickest by far and allow me the leveraged access to crypto markets I want. Like I say, decide what you want and need and narrow it down but then test out a few.
I recommend trading with an ASIC broker FP Markets. They have a robust trading condition with a minimum opening balance of $100 AUD. The commission costs per round per lot are $6 which is lower than other similar ecn brokers and the spreads average at 0.0pips for most parts of my trades.
do not recommend at any broker without using practically because most of the brokers right now are founds to be scam. you can check review on FPA.