I would help you distill your thoughts on decision making. But its a no go for RAIDing SSDs. It's only useful in the HDD era because they could not saturate the maximum trasfer rates of the SATA controller at any point.
In the SSD age, the risk of data loss from running a RAID is no longer worth it because SSDS are extremely fast. RAIDing SSDs will give you great benchmarks but in reality, you're not going to see a huge performance jump over use of a single ssd.
You don't need RAID with SSDs.
On your SSD choice, my opinion is that Intel enforces planned obsolesence heavily. This can be seen with the 500/300 series SSDs where certain critical bugs were not fixed. Instead, the fix was only introduced to the refreshed version of the SSD. One example was Intel 520 to 530 (530 is a refreshed 520 with 20nm instead of 25nm flash).
1. Widest compatibility testing, best system compatibility with probably the widest range of PCs, Macs and legacy Macs included - Samsung 830/840 series, but Crucial caught up when they came up with the M500-550 series line up, after the M4 which was botched with certain issues like the frequent need to "power cycle" the SSDs when used on certain PCs (documented on crucial forums). At a certain point, the Samsung drives were the only mac friendly SSDs but other makers like Crucial joined the game.
I wouldn't say Intel comes close in compatibility testing and they aren't as forgiving with legacy and phased out systems.
2. Best warranty, goes to Intel, Crucial, followed by Samsung in this pack.
3. Reliability. In endurance terms, Samsung's track record beats all the competition in track record, referring to the xtremesystems write endurance test where most good SSDs failed after 600TB-1PB writes, while the Sansung 830 died after nearly 6PB of writes..
The tests were sick and not does not attempt to simluate more realistic workloads and most people wouldn't write that much data m, the results were interesting though.
Looks like the price of the 730 has fallen considerably and is quite competitive with offerings from other manufacturers making high performance SSDs.
Crucial M500-550 (mainstream performance), Samsung 840 series and Intel 730 are all good choices and are reliable. Weigh what's most important for you in the 3 areas i pointed above.
The intel 730 is a break off from Intel's sandforce SSD lineup. But it's very new. The sandforce lineup was bad, varying reliability levels depending on the system used actually.